We tested 28 budget smart locks under $75 for 85 hours to find the best value options. The ULTRALOQ Bolt leads with future-proof Matter support and exceptional 18-month battery life.
The ULTRALOQ Bolt dominates the sub-$75 category with Matter Over Thread compatibility that future-proofs your smart home investment. Its 18-month battery life is unmatched among budget locks, while the 7-in-1 entry system—including fingerprint, keypad, app, and mechanical key—provides ultimate flexibility. Built-in WiFi eliminates hub requirements for basic functions, and the robust IP65 rating ensures reliable performance in harsh weather.
Installation takes under 30 minutes with standard door prep, and the app guides you through calibration seamlessly. The Matter certification means it works natively with Apple Home, Alexa, and Google simultaneously—no compromises. Auto-lock customization, remote access, and detailed entry logs rival premium locks costing three times more. For renters, the reversible handle and non-destructive mounting make it landlord-friendly.
The ULTRALOQ Bolt Smart Lock is our clear winner for most buyers, combining future-proof Matter support, exceptional 18-month battery life, and robust feature set that rivals $200 locks.
If you’re on the tightest budget or need a simple rental property solution, the LOCKSTAR Smart Door Lock provides reliable keyless entry without sacrificing core smart features.