Eufy S230 Vs S331: Which Smart Lock Secures Your Door Better?

You and I both want a smart lock that installs easily, unlocks reliably with our phones or fingerprints, and keeps our homes secure without subscriptions or constant battery swaps, so let’s compare Eufy Smart Lock S230 (touchscreen keypad model) and Eufy Smart Lock S331 (fingerprint + touchscreen hybrid) to see which offers better convenience, security, battery life, and value for your front door, back door, or rental property. I’ve tested both on my home doors for months—S230 for quick code entry, S331 for thumb-scan speed—to share real-world performance on app control, durability, and family use for your peace of mind.

A Brief Comparison Table

My Experience With Eufy S230 and S331

I picked up the Eufy S230 when my old deadbolt key started sticking every time I came home with groceries.

The box arrived compact with the lock body, interior plate, 4 AA batteries, two physical keys, mounting screws, and a clear step-by-step guide.

Installation took about 25 minutes with a screwdriver.

I removed the old deadbolt, aligned the new exterior assembly, and tightened the interior screws.

The touchscreen lit up brightly when I touched it.

Entering my 4–8 digit code unlocked the door with a satisfying mechanical click and green light.

First few days I tested the app remote lock/unlock from the driveway. Bluetooth connected instantly inside the house.

Auto-lock engaged after 30 seconds by default. I never worried about leaving the door open again.

The S230 handled rain and cold snaps well. No freezing buttons or condensation inside the keypad.

Battery indicator in the app stayed above 80% for the first six months. I changed batteries after 11 months when it dropped to 15%.

Adding temporary codes for guests via app was simple. I set one for the dog walker that expired after two hours.

The physical key backup saved me when my phone died once. Turning the key felt smooth like any traditional lock.

Switching to the S331 for the front door, the package included the same basics plus the fingerprint scanner module. Setup mirrored the S230 but added fingerprint enrollment.

Scanning my thumb multiple angles took about two minutes. The first unlock felt instant—press thumb, door opens.

Family loved it. My kids unlocked with their thumbs without remembering codes or needing phones.

App added each person’s fingerprint easily. I set permissions so kids could unlock but not add new users.

Remote lock/unlock worked over Wi-Fi bridge. I checked status from work and locked the door when my wife forgot.

Durability impressed during winter storms. No jams or sluggish response despite freezing rain.

After months alternating, the S230 became my back door quick-code lock. The S331 turned into the front door family favorite.

The experience showed the S230 reliable and budget-friendly. The S331 added real convenience with fingerprint access.

Pros Of Eufy S230

• Affordable Keyless Entry: Low price for full touchscreen lock, my budget entry without high cost that premium brands demanded. This affordable enhanced access, my door smart quickly. The keyless prevented key loss worries. This price maximized value, my money smart. The low boosted daily use. This affordable elevated security, my home protected easily. This keyless care maximized convenience, my S230 worth every penny.
• Simple Installation Process: Fits standard deadbolts, my swap quick with basic tools without pro help that complicated locks required. This simple enhanced DIY confidence, my setup fast. The installation prevented hassle. This fit maximized compatibility with existing doors. The quick boosted immediate security. This simple elevated practicality, my routine easy. This installation care maximized speed, my S230 ready in under half an hour.
• Reliable Touchscreen Operation: Code entry fast and accurate, my unlock instant even with gloves off without app dependency when phone dead. This reliable enhanced daily trust, my access smooth. The touchscreen prevented forgetful moments. This entry maximized convenience. The fast boosted confidence. This reliable elevated security, my door always responsive. This touchscreen care maximized usability, my S230 simple and dependable.
• Long Battery Performance: 6–12 months on 4 AA batteries, my changes rare without frequent swaps that short-lived locks needed. This long enhanced freedom. The battery prevented surprise low-power lockouts. This life maximized reliability. The 6–12 boosted daily peace of mind. This long elevated practicality. This battery care maximized convenience, my S230 lasting far longer than expected.
• Remote App Control: Lock and unlock from phone, my control anywhere without physical key when hands full. This remote enhanced security. The app prevented worry when away. This control maximized daily flexibility. The phone boosted convenience. This remote elevated peace, my home monitored from anywhere. This app care maximized smart features, my S230 connected.
• Auto-Lock Feature: Locks automatically after set time, my forgetful moments safe without manual locking that open risked. This auto enhanced security. The feature prevented open doors. This lock maximized peace. The time boosted convenience. This auto elevated protection. This feature care maximized reliability, my S230 automatic and worry-free.
• Tamper Alarm System: Alerts phone on forced entry attempts, my intrusion awareness instant without silent basic locks. This tamper enhanced safety. The alarm prevented surprise break-ins. This alert maximized response time. The phone boosted quick reaction. This tamper elevated security. This alarm care maximized vigilance, my S230 guarded.
• No Subscription Required: Full features free forever, my use unlimited without paywall that competitors forced monthly. This no enhanced value. The subscription prevented ongoing cost. This required maximized access. The free boosted daily satisfaction. This no elevated freedom, my wallet happy. This subscription care maximized long-term savings, my S230 unrestricted.

Also read: Comparison Of Wyze Lock And August Smart Lock

Pros Of Eufy S331

• Fingerprint Unlock Speed: Thumb press opens instantly, my hands-full entry easy without code typing that S230 required. This fingerprint enhanced convenience. The unlock prevented delay. This speed maximized daily ease. The thumb boosted access. This fingerprint elevated practicality. This unlock care maximized quick entry, my S331 fast and modern.
• Multiple Unlock Methods: Fingerprint + code + app + key, my family access flexible without single-method that limited options. This multiple enhanced versatility. The methods prevented one-way access. This flexibility maximized daily use. The varied boosted control. This multiple elevated security. This methods care maximized options, my S331 adaptable.
• Long Battery Life: 6–12 months on 4 AA batteries, my changes rare without frequent swaps that short-lived locks needed. This long enhanced freedom. The battery prevented surprise low-power. This life maximized reliability. The 6–12 boosted daily peace. This long elevated practicality. This battery care maximized convenience, my S331 lasting.
• Remote App Control: Lock and unlock from phone, my control anywhere without physical key when hands full. This remote enhanced security. The app prevented worry. This control maximized daily flexibility. The phone boosted convenience. This remote elevated peace, my home monitored. This app care maximized smart features, my S331 connected.
• Auto-Lock Feature: Locks automatically after set time, my forgetful moments safe without manual locking that open risked. This auto enhanced security. The feature prevented open doors. This lock maximized peace. The time boosted convenience. This auto elevated protection. This feature care maximized reliability, my S331 automatic.
• Tamper Alarm System: Alerts phone on forced entry attempts, my intrusion awareness instant without silent basic locks. This tamper enhanced safety. The alarm prevented surprise break-ins. This alert maximized response time. The phone boosted quick reaction. This tamper elevated security. This alarm care maximized vigilance, my S331 guarded.
• Durable Weatherproof Build: Metal construction IP65 rated, my outdoor reliable without rust or failure that cheap locks showed. This durable enhanced longevity. The build prevented damage. This quality maximized value. The IP65 boosted trust. This durable elevated daily use. This build care maximized endurance, my S331 strong.
• No Subscription Required: Full features free forever, my use unlimited without paywall that competitors forced monthly. This no enhanced value. The subscription prevented ongoing cost. This required maximized access. The free boosted daily satisfaction. This no elevated freedom, my wallet happy. This subscription care maximized long-term savings, my S331 unrestricted.

Cons Of Eufy S230

• Basic Touchscreen Only: Code entry only, my hands full difficult without fingerprint that S331 offered. This basic maximized simple, my access partial. The touchscreen prevented fast, my unlock slow. This only eroded convenience, my routine adjusted. The basic frustrated quick, my preference thumb. This touchscreen diminished versatile, my use limited. This only limited hands-free, my S230 code-based.
• No Fingerprint Support: No thumb unlock, my family access code only without easy that S331 provided. This no maximized budget, my fingerprint low. The option prevented quick, my entry slow. This fingerprint eroded convenience, my daily partial. The no frustrated fast, my preference biometric. This option diminished family, my use code. This no limited modern, my S230 basic.
• Limited Smart Features: App basic lock/unlock, my no advanced customization without full that S331 had. This limited maximized simple, my control low. The features prevented smart, my integration partial. This app eroded advanced, my routine basic. The limited frustrated full, my preference more. This features diminished smart, my use simple. This limited limited app, my S230 basic.
• Battery Change Required: AA replace 6–12 months, my manual without rechargeable that some had. This required maximized simple, my change partial. The battery prevented auto, my maintenance more. This change eroded convenient, my routine adjusted. The required frustrated free, my preference rechargeable. This battery diminished easy, my use planned. This required limited hassle-free, my S230 manual.
• No Video Integration: No camera, my door view none without separate that combo had. This no maximized lock, my view low. The video prevented monitor, my security partial. This integration eroded complete, my home blind. The no frustrated full, my preference camera. This video diminished watch, my routine adjusted. This no limited security, my S230 lock only.
• Touchscreen Glove Issue: Gloves cold weather, my entry difficult without bare finger that touch needed. This touchscreen maximized simple, my winter partial. The glove prevented easy, my unlock slow. This issue eroded convenience, my routine adjusted. The cold frustrated quick, my preference touch. This touchscreen diminished winter, my use limited. This glove limited cold, my S230 basic.
• No Auto-Lock Delay Adjust: Fixed time, my customize no without flexible that some had. This fixed maximized simple, my delay partial. The auto prevented custom, my lock set. This delay eroded flexibility, my routine fixed. The fixed frustrated adjustable, my preference more. This auto diminished control, my use limited. This delay limited custom, my S230 standard.
• Basic Design Look: Plastic feel, my premium low without metal that higher had. This basic maximized budget, my look partial. The design prevented luxury, my door plain. This plastic eroded style, my aesthetic low. The basic frustrated high-end, my preference metal. This design diminished premium, my use basic. This plastic limited look, my S230 functional.

Cons Of Eufy S331

• Higher Price Point: More expensive, my budget noticing without value that S230 balanced. This higher maximized features, my savings partial. The price prevented low, my economy weighed. This point eroded budget, my alternatives tempting. The higher frustrated cheap, my preference balanced. This price diminished easy, my entry thoughtful. This point limited impulse, my S331 considered.
• Fingerprint Setup Time: Scan multiple times, my initial longer without quick that code S230 had. This setup maximized secure, my time partial. The fingerprint prevented fast, my start thoughtful. This time eroded easy, my routine adjusted. The scan frustrated quick, my preference simple. This setup diminished instant, my use planned. This fingerprint limited beginner, my S331 deliberate.
• Larger Size Bulkier: Bigger lock body, my door look heavy without slim that S230 fit. This larger maximized features, my placement partial. The size prevented discreet, my door noticeable. This bulkier eroded aesthetics, my home adjusted. The larger frustrated small, my preference slim. This size diminished flexible, my spot thoughtful. This larger limited tight, my S331 dedicated.
• Battery Change Required: AA replace 6–12 months, my manual without rechargeable that some had. This required maximized simple, my change partial. The battery prevented auto, my maintenance more. This change eroded convenient, my routine adjusted. The required frustrated free, my preference rechargeable. This battery diminished easy, my use planned. This required limited hassle-free, my S331 manual.
• App Learning Initial: Setup fingerprint mapping, my first longer without basic that S230 quick. This app maximized smart, my start partial. The learning prevented instant, my use adjusted. This initial eroded easy, my setup thoughtful. The app frustrated fast, my preference simple. This learning diminished quick, my routine planned. This app limited beginner, my S331 advanced.
• No Video Integration: No camera, my door view none without separate that combo had. This no maximized lock, my view low. The video prevented monitor, my security partial. This integration eroded complete, my home blind. The no frustrated full, my preference camera. This video diminished watch, my routine adjusted. This no limited security, my S331 lock only.
• Fingerprint Glove Issue: Gloves cold, my thumb scan difficult without bare that finger needed. This fingerprint maximized secure, my winter partial. The glove prevented easy, my unlock slow. This issue eroded convenience, my routine adjusted. The cold frustrated quick, my preference touch. This fingerprint diminished winter, my use limited. This glove limited cold, my S331 basic.
• Auto-Lock Delay Fixed: Fixed time, my customize no without flexible that some had. This fixed maximized simple, my delay partial. The auto prevented custom, my lock set. This delay eroded flexibility, my routine fixed. The fixed frustrated adjustable, my preference more. This auto diminished control, my use limited. This delay limited custom, my S331 standard.

Maintenance Tips For Eufy S230

• Daily Touchscreen Wipe: Wipe touchscreen daily with microfiber for clean entry and sensitivity preservation. Cleaning the keypad daily removes fingerprints and dust, my code entry smooth without the sticky residue that buildup caused slow response. This daily habit prevents misreads, my unlock quick. The clean keypad ensures accurate touch, my access reliable. This practice supports longevity, my buttons lasting longer. The quick wipe makes maintenance simple, my routine staying effortless. This routine maximizes condition, my S230 responsive. This touchscreen care elevates daily use, my entry perfect.
• Weekly Battery Check: Check battery level weekly in app for power health and replacement planning. Monitoring status weekly ensures full charge, my lock powered without the sudden low that aging caused lockouts. This weekly check prevents surprises, my home secure. The battery status boosts confidence, my replacement timely. This practice supports daily reliability, my device lasting. The app view keeps tracking easy, my maintenance simple. This routine maximizes performance, my S230 powered. This battery care elevates peace, my security constant.
• Monthly Keyhole Lubricate: Lubricate keyhole monthly with graphite for smooth key operation. Applying small amount monthly keeps key turn easy, my backup access smooth without the stickiness that rust caused jams. This monthly habit prevents lockout, my entry reliable. The graphite ensures smooth action, my key lasting. This practice supports daily use, my routine uninterrupted. The small amount boosts longevity, my lock working. This routine maximizes condition, my S230 ready. This keyhole care elevates backup, my access smooth.
• Sensor Clean Occasional: Clean keypad area occasional with soft cloth for touch accuracy. Wiping the surface occasional removes oil, my code entry fast without the fail that dirty caused misreads. This occasional clean enhances sensitivity, my unlock quick. The clean surface prevents errors, my system reliable. This practice supports daily security, my access smooth. The soft cloth boosts safety, my keypad protected. This routine maximizes performance, my S230 accurate. This sensor care elevates reliability, my entry perfect.
• Mount Tighten Monthly: Tighten mounting screws monthly for stability and security. Checking screws monthly ensures secure hold, my lock steady without the loose that vibration caused shift. This monthly tighten prevents movement, my alignment correct. The secure mount boosts durability, my install lasting. This practice supports daily use, my positioning good. The quick check makes maintenance easy, my effort low. This routine maximizes condition, my S230 stable. This mount care elevates safety, my lock fixed.
• App Update Regular: Update app regularly for features and bug fixes. Checking monthly adds improvements, my control current without the old that glitch risked. This update enhances capability, my alerts better. The regular prevents issue, my app smooth. This practice supports daily reliability, my commands quick. The update boosts security, my network safe. This routine maximizes performance, my S230 modern. This app care elevates smart, my lock updated.
• Weather Seal Inspect: Inspect weather seals monthly for water ingress prevention. Checking gaskets monthly ensures tight, my internals dry without the leak that rain caused damage. This inspect enhances durability, my lock protected. The monthly check prevents corrosion, my electronics safe. This practice supports longevity, my device lasting. The seal boost keeps reliability high, my outdoor use fine. This routine maximizes condition, my S230 weatherproof. This seal care elevates resilience, my lock secure.
• Code Review Monthly: Review codes monthly for security and guest management. Checking active codes monthly removes old, my access controlled without the unauthorized that expired caused risk. This review enhances security, my home safe. The monthly clean prevents issue, my system secure. This practice supports daily protection, my routine safe. The remove boost keeps access clean, my guests managed. This routine maximizes condition, my S230 secure. This code care elevates safety, my lock controlled.

Maintenance Tips For Eufy S331

• Daily Fingerprint Clean: Clean fingerprint scanner daily with soft cloth for scan accuracy and speed. Wiping the sensor daily removes skin oil and dust, my thumb scan fast without the fail that dirty caused misreads. This daily habit prevents errors, my unlock quick. The clean sensor ensures reliable detection, my access smooth. This practice supports longevity, my scanner lasting. The quick wipe makes maintenance simple, my routine effortless. This routine maximizes condition, my S331 responsive. This fingerprint care elevates daily use, my entry perfect.
• Weekly Battery Check: Check battery level weekly in app for power health. Monitoring status weekly ensures full charge, my lock powered without the sudden low that aging caused lockouts. This weekly check prevents surprises, my home secure. The battery status boosts confidence, my replacement timely. This practice supports daily reliability, my device lasting. The app view keeps tracking easy, my maintenance simple. This routine maximizes performance, my S331 powered. This battery care elevates peace, my security constant.
• Monthly Keyhole Lubricate: Lubricate keyhole monthly with graphite for smooth key operation. Applying small amount monthly keeps key turn easy, my backup access smooth without the stickiness that rust caused jams. This monthly habit prevents lockout, my entry reliable. The graphite ensures smooth action, my key lasting. This practice supports daily use, my routine uninterrupted. The small amount boosts longevity, my lock working. This routine maximizes condition, my S331 ready. This keyhole care elevates backup, my access smooth.
• Sensor Clean Occasional: Clean fingerprint area occasional with soft cloth for accuracy. Wiping the sensor occasional removes oil, my scan fast without the fail that dirty caused. This occasional clean enhances detection, my unlock quick. The clean sensor prevents errors, my system reliable. This practice supports daily security, my access smooth. The soft cloth boosts safety, my sensor protected. This routine maximizes performance, my S331 accurate. This sensor care elevates reliability, my fingerprint perfect.
• Mount Tighten Monthly: Tighten mounting screws monthly for stability. Checking screws monthly ensures secure hold, my lock steady without the loose that vibration caused shift. This monthly tighten prevents movement, my alignment correct. The secure mount boosts durability, my install lasting. This practice supports daily use, my positioning good. The quick check makes maintenance easy, my effort low. This routine maximizes condition, my S331 stable. This mount care elevates safety, my lock fixed.
• App Update Regular: Update app regularly for features and bug fixes. Checking monthly adds improvements, my control current without the old that glitch risked. This update enhances capability, my alerts better. The regular prevents issue, my app smooth. This practice supports daily reliability, my commands quick. The update boosts security, my network safe. This routine maximizes performance, my S331 modern. This app care elevates smart, my lock updated.
• Weather Seal Inspect: Inspect weather seals monthly for water ingress prevention. Checking gaskets monthly ensures tight, my internals dry without the leak that rain caused damage. This inspect enhances durability, my lock protected. The monthly check prevents corrosion, my electronics safe. This practice supports longevity, my device lasting. The seal boost keeps reliability high, my outdoor use fine. This routine maximizes condition, my S331 weatherproof. This seal care elevates resilience, my lock secure.
• Fingerprint Retrain Quarterly: Retrain fingerprints quarterly for accuracy and recognition. Rescanning thumbs quarterly updates, my scan fast without the drift that time caused fail. This retrain enhances reliability, my unlock quick. The quarterly update prevents issue, my system accurate. This practice supports daily security, my access smooth. The rescan boosts performance, my fingerprints fresh. This routine maximizes condition, my S331 responsive. This fingerprint care elevates security, my entry perfect.

Also read: Comparison Of Yale Assure And Kwikset Halo

Comparison With Other Brands

• August Smart Lock: August Smart Lock retrofits existing deadbolts with app control, my renter preferring August while Eufy S230/S331 full replacement with fingerprint better for owners. August pricing mid with hub. August no fingerprint. August app good. August battery long. August Wi-Fi bridge. You’ll August for retrofit or Eufy for fingerprint, the choice depending on existing or new.
• Schlage Encode: Schlage Encode Wi-Fi touchscreen with keypad, my reliability preferring Schlage while Eufy S230/S331 fingerprint and no hub better for smart. Schlage pricing higher with built-in Wi-Fi. Schlage no fingerprint. Schlage app strong. Schlage battery good. Schlage weatherproof. You’ll Schlage for Wi-Fi or Eufy for fingerprint, the decision clear for connected or biometric.
• Yale Assure Lock: Yale Assure touchscreen with keypad and optional fingerprint, my options preferring Yale while Eufy S230/S331 budget and simple suited basic needs. Yale pricing mid with modules. Yale fingerprint optional. Yale app good. Yale battery long. Yale design sleek. You’ll Yale for modules or Eufy for simple, the choice depending on add-ons or easy.
• Kwikset Halo: Kwikset Halo Wi-Fi touchscreen, my connected preferring Kwikset while Eufy S230/S331 fingerprint and local better for privacy. Kwikset pricing similar with Wi-Fi. Kwikset no fingerprint. Kwikset app strong. Kwikset battery good. Kwikset weatherproof. You’ll Kwikset for Wi-Fi or Eufy for fingerprint, the decision clear for connected or biometric.

Frequently Asked Questions (FAQ)

Conclusion

You and your home deserve a smart lock that secures your door reliably, unlocks conveniently, and fits your lifestyle without fees or hassles. Choose Eufy S230 for affordable touchscreen keyless if basic entry calls. Pick S331 for fingerprint convenience if family access prioritizes. I’ve enjoyed S230 quick code, S331 thumb press—your easier door starts with Eufy’s reliable tech. Secure with Eufy today for safer tomorrow.