Smart Locks
Best Smart Lock for Small Room (2026): 5 Picks Compared
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The Evanshow lock leads this list for a small room: a fingerprint knob with a keypad, auto-lock, and app control at 1.2 lb. The HEI LIANG lock is the Runner-Up with 4 unlock ways and 0.3-second fingerprint recognition, and every pick here fits a bedroom door.
Starting out? See the main guide: Best Smart Lock
Top picks at a glance
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Best OverallEvanshow Smart Door Lock with Knob9.8 View on Amazon -
Runner-UpHEI LIANG Fingerprint Door Lock9.6 View on Amazon -
Also GreatRichelock Fingerprint Door knob9.3 View on Amazon -
Also GreatFoxgard Smart Fingerprint Door Lock9.3 View on Amazon -
9.2 View on Amazon
Compare the specs
Ranked on fingerprint reader, keypad, auto-lock, phone app control from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Fingerprint reader | Keypad | Auto-lock | Phone app control | Weight | Warranty |
|---|---|---|---|---|---|---|
| 1. Evanshow Smart Door Lock with Knob | Yes | Yes | Yes | Yes | 1.2 lb | — |
| 2. HEI LIANG Fingerprint Door Lock | Yes | Yes | Yes | Yes | 1.5 lb | — |
| 3. Richelock Fingerprint Door knob | Yes | Yes | Yes | — | — | 1-year |
| 4. Foxgard Smart Fingerprint Door Lock | Yes | Yes | Yes | — | 1.63 lb | — |
| 5. FDFDTO Fingerprint Door Lock with Keypad & Handle | Yes | Yes | Yes | Yes | — | 12-month |
Evanshow Smart Door Lock with Knob
It earns Best Overall with fingerprint, keypad, NFC card, and key entry, plus auto-lock and app control.
- Fingerprint reader
- Keypad
- Auto-lock
- Phone app control
Good for
- Buyers who want fingerprint and keypad entry
- Buyers who want auto-lock and app control
Skip it if
- You want a lock heavier than 1.2 lb
- You want a lock for doors thicker than 1.97 inches
It opens by fingerprint, keypad passcode, NFC card, or mechanical key, with 0.5-second fingerprint unlocks from the knob. The app assigns permanent or temporary access, tracks entry logs, and enables silent mode. Auto-lock secures the knob after a pre-set time, and it fits wooden doors 1.18 to 1.97 inches thick with left or right swing. It weighs 1.2 lb, installs without drilling or wiring, and has a USB port for emergency power.
HEI LIANG Fingerprint Door Lock
It holds Runner-Up with 4 unlock ways, 0.3-second fingerprint recognition, and app control.
- Fingerprint reader
- Keypad
- Auto-lock
- Phone app control
Good for
- Buyers who want 4 unlock ways
- Buyers who want Bluetooth app control
Skip it if
- You want a lock heavier than 1.5 lb
- You want a lock for doors thicker than 55 mm
It opens by fingerprint, passcode, app control, or emergency key, with fingerprint recognition in 0.3 seconds. The app manages users, checks unlock history, sets auto-lock, and adjusts entry modes. It fits doors 30 to 55 mm thick, shows real-time battery level with low-power alerts, and installs in minutes with a screwdriver. It weighs 1.5 lb.
Richelock Fingerprint Door knob
It pairs fingerprint, keypad, and key entry with 100 fingerprints, 50 passcodes, and a 1-year warranty.
- Fingerprint reader
- Keypad
- Auto-lock
- 1-year warranty stated
Good for
- Buyers who want 100 fingerprints stored
- Buyers who want dynamic passcodes shared remotely
Skip it if
- You want more than 100 fingerprints
- You want more than 50 passcodes
It opens by fingerprint, keypad, or key, with an illuminated keypad and voice guidance for setup. It stores 100 fingerprints and 50 passcodes of 1 to 15 digits, with guest mode, silent mode, and manual mode. A zinc alloy body with waterproof electronics works from -22°F to 176°F, and it runs on 2 AAA batteries with a Type-C port for backup power. It carries a 1-year warranty.
Foxgard Smart Fingerprint Door Lock
It combines 5 unlock methods with anti-peep keypad entry, an electronic deadlock, and app control.
- Fingerprint reader
- Keypad
- Auto-lock
Good for
- Buyers who want 5 unlock methods
- Buyers who want one-time or timed passcodes
Skip it if
- You want a lock heavier than 1.63 lb
- You want more than 5 unlock methods
It opens by fingerprint, keypad code, app, IC card, or mechanical key, with a backlit keypad and anti-peep entry. The app generates one-time or timed codes and monitors access logs, and a built-in electronic deadlock adds indoor privacy. A gateway sold separately enables remote access and voice control. It runs on 4 AA batteries with low-battery alerts and weighs 1.63 lb.
FDFDTO Fingerprint Door Lock with Keypad & Handle
It pairs 0.2-second fingerprint recognition with app control, passage mode, and a 12-month warranty.
- Fingerprint reader
- Keypad
- Auto-lock
- Phone app control
- 12-month warranty stated
Good for
- Buyers who want 0.2-second fingerprint recognition
- Buyers who want a rechargeable battery with standby power
Skip it if
- You want a warranty longer than 12 months
- You want a lock for doors thicker than 2-1/8 inches
It opens by fingerprint, anti-peep keypad passcode, app control, or 2 mechanical backup keys, with fingerprint recognition in 0.2 seconds. A 400mAh rechargeable battery charges in 4 to 6 hours and gives up to a full year of standby power. It has a low-battery alert, silent mode, passage mode, and a backlit keypad for night use. It installs in 15 minutes with a screwdriver and carries a 12-month warranty.
How to choose
Count unlock methods before comparing
Unlock methods separate these locks. The Evanshow opens by fingerprint, keypad, NFC card, or key. The HEI LIANG opens by fingerprint, passcode, app, or emergency key. The Richelock opens by fingerprint, keypad, or key. The Foxgard opens by fingerprint, code, app, IC card, or key. The FDFDTO opens by fingerprint, keypad, app, or mechanical keys. Count the methods you will use daily, then check the rest.
Check door fit and installation
Door fit decides whether a lock installs without trouble. The Evanshow fits wooden doors 1.18 to 1.97 inches thick with left or right swing. The HEI LIANG fits doors 30 to 55 mm thick. The Richelock fits standard US doors with 2-3/4 or 2-3/8 inch backsets. The FDFDTO fits door thicknesses from 1-1/8 to 2-1/8 inches and installs in 15 minutes with a screwdriver. Measure thickness and backset before buying.
Compare power and passcode control
Power and passcode control differ across the list. The Evanshow and HEI LIANG apps manage access and logs, the Richelock shares dynamic passcodes remotely, and the Foxgard app generates one-time or timed codes. Match battery type and code control to how the room is used.
FAQ
Do all five locks have fingerprint readers?
Yes. The Evanshow, HEI LIANG, Richelock, Foxgard, and FDFDTO locks each have a fingerprint reader.
Which locks have app control?
The Evanshow, HEI LIANG, Foxgard, and FDFDTO locks have app control. The Richelock shares dynamic passcodes remotely without an app.
Do these locks auto-lock?
Yes. All five locks have auto-lock. The Evanshow secures itself after a pre-set time, and the Richelock locks itself after use.
Which lock has a rechargeable battery?
The FDFDTO uses a 400mAh rechargeable battery that charges in 4 to 6 hours and gives up to a full year of standby power.
