Smart Home
Best Smart Locks 2026
Sort: undig score
Ranked by aggregated score from The Verge, TechRadar, Tom's Guide and Wirecutter. Keyless and retrofit smart door locks — judged on security, reliability and euro-cylinder fit.
The VergeTechRadarTom's GuideWirecutterTrusted Reviews + more
#1 Overall retrofit
Updated August 2026
Nuki Smart Lock Pro (4th gen)
The EU retrofit king — fits over your existing euro cylinder with Wi-Fi, Matter and rock-solid reliability
THE undig SCORE — 4 SOURCES, UNTANGLED
89
Out of 100
#2 Overall retrofit
Updated August 2026
Yale Linus Smart Lock L2
The trusted name — a refined retrofit lock from a lock-industry giant with a slick app
THE undig SCORE — 3 SOURCES, UNTANGLED
86
Out of 100
#3 Overall retrofit
Updated August 2026
SwitchBot Lock Ultra
The feature-packed value pick — fast retrofit lock with an optional fingerprint keypad
THE undig SCORE — 3 SOURCES, UNTANGLED
85
Out of 100
#4 Overall retrofit
Updated August 2026
Aqara Smart Lock U200
The HomeKit pick — Matter over Thread and Apple home-key support in a clean retrofit lock
THE undig SCORE — 3 SOURCES, UNTANGLED
85
Out of 100
#5 Overall retrofit
Updated August 2026
Tedee Go
The compact pick — one of the smallest retrofit smart locks, easy to fit and quiet in use
THE undig SCORE — 3 SOURCES, UNTANGLED
83
Out of 100