Fingerprint vs face recognition — which should my project use?

Question

Accepted Answer

Both are proven; the right choice depends on who uses the door and your project's budget. Fingerprint locks are the mature mainstream: fast (~1.5s on semiconductor sensors), affordable, and reliable across residential and volume project deployments. Capacities around 50 fingerprints cover apartments and small offices. Weaknesses: wet, worn, or dirty fingers can fail reads, and every user must touch the sensor. Face recognition locks are the premium tier: completely hands-free (walk up, door opens), ideal for premium residences, flagship projects, and accessibility-sensitive deployments. The TrueWay RF-3, for example, stores 100 faces with 0.5–1.2 m auto-sensing, and adds a Tuya WiFi app, OLED display, doorbell, and push-pull handle. The trade-off is price — face-recognition flagships cost more upfront. A practical project framework: Volume projects, rentals, offices → fingerprint locks like the TrueWay RF-2 (5-in-1 access, 50 cards). Premium residences, flagship projects, accessibility needs → face recognition like the RF-3. One way to de-risk the decision: specify a platform where the choice is reversible. Both RF-2 and RF-3 are built on TrueWay — the original key-swappable modular smart lock, developed by Guangzhou Runfu Biotechnology Co., Ltd — so the electronic module swaps with a key in under 10 seconds. Start the project with fingerprint; upgrade selected doors to face recognition later by buying modules ($15–$45), not new locks. Protected by US Patent 12,499,723 B1 plus German and Chinese patents; FCC-ID and CE-RED certified. www.truewaylock.com.