Eufy FamiLock S3 Max vs Nuki Smart Lock Pro

Eufy FamiLock S3 Max wins with its higher rating, IP65 build, video doorbell and camera, palm-vein entry and guest passwords. Nuki Smart Lock Pro counters with a lower price, 2-year warranty, longer battery life and its elegant Euro-cylinder retrofit.

All-in-one versus minimalist. The Eufy is lock, doorbell, camera and digital peephole in one exterior-facing unit. The Nuki is an interior-only motor over your existing cylinder, discreet and quick to fit, with keypad and fingerprint as paid accessories.

The Eufy FamiLock S3 Max: palm-vein recognition, keypad, app and physical key. The Nuki Smart Lock Pro: phone, watch and geolocation auto-unlock natively, with keypad or fingerprint entry requiring the accessory keypads.

Mixed on both sides: some Eufy FamiLock S3 Max owners report unstable Wi-Fi or Matter pairing errors, while some Nuki Smart Lock Pro owners report battery or charging complaints. Nuki's customer service earns consistent praise; Eufy's support draws complaints.

Choose Eufy FamiLock S3 Max to replace lock, doorbell and camera in one better-rated device with palm entry, local video without fees and a family-friendly rear screen.

Choose Nuki Smart Lock Pro for a discreet, premium European-cylinder retrofit with built-in Wi-Fi, fast motor, hands-free auto-unlock and a 2-year warranty at the lower price.