Door Locks · Head to head

Eufy Smart Lock E31 vs Philips 4200 Series Smart Deadbolt with Door Lever

Full Smart Door Locks comparison in 2026

Updated November 2026
Data from the official Eufy and Philips sites.
2026 verdict
For most buyers in 2026, Philips 4200 Series Smart Deadbolt with Door Lever is the safer pick over Eufy Smart Lock E31 because of price, rating, and warranty.
Philips 4200 Series Smart Deadbolt with Door Lever
Winner
Philips 4200 Series Smart Deadbolt with Door Lever
$115.99$169.9932% OFFPrime exclusive deal
Buy on Amazon USA
Its clearest strengths are price, rating, and warranty, and it still looks stronger on Lock/Unlock system. Eufy Smart Lock E31 is still relevant if you care most about battery life, connectivity, and integrations, but Philips 4200 Series Smart Deadbolt with Door Lever is the stronger recommendation overall. In practical terms, Philips 4200 Series Smart Deadbolt with Door Lever is the easier product to recommend.
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The biggest differences

Where these two are furthest apart, and by how much.

  • Battery Life2.3×Eufy Smart Lock E3114 months vs 6 months
  • Warranty+33%Philips 4200 Series Smart Deadbolt with Door Lever2 years vs 1.5 years
FeatureEufy Smart Lock E31Philips 4200 Series Smart Deadbolt with Door LeverWinner
Price$149.99$115.99Philips 4200 Series Smart Deadbolt with Door Lever
Rating3.94.4Philips 4200 Series Smart Deadbolt with Door Lever
Warranty1.5 years2 yearsPhilips 4200 Series Smart Deadbolt with Door Lever
Battery Life14 months6 monthsEufy Smart Lock E31
Connectivity2.4 GHz WiFi, Bluetooth, Thread Protocol2.4 GHz WiFi, BluetoothEufy Smart Lock E31
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantEufy Smart Lock E31
Lock/Unlock SystemRemote, Passcode, Fingerprint, Physical KeyRemote, Bluetooth, Passcode, Fingerprint, Physical KeyPhilips 4200 Series Smart Deadbolt with Door Lever
Weather ResistanceIP53YESTie
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie
Eufy

Eufy Smart Lock E31

Prime exclusive deal
$149.99
Buy on Amazon USA
  • + Battery Life: 14 months
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Thread Protocol
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $149.99 vs $115.99
  • - Rating: 3.9 vs 4.4

Frequently Asked Questions

Which is better overall: Eufy Smart Lock E31 or Philips 4200 Series Smart Deadbolt with Door Lever?

Philips 4200 Series Smart Deadbolt with Door Lever has the stronger overall profile in this comparison, especially for price, rating, and warranty.

What is the biggest difference between Eufy Smart Lock E31 and Philips 4200 Series Smart Deadbolt with Door Lever?

Price is one of the clearest differences: Eufy Smart Lock E31 lists $149.99, while Philips 4200 Series Smart Deadbolt with Door Lever lists $115.99.

Which one looks better on price?

Eufy Smart Lock E31 is listed at $149.99, while Philips 4200 Series Smart Deadbolt with Door Lever is listed at $115.99. Philips 4200 Series Smart Deadbolt with Door Lever (better spec).

Who should buy Eufy Smart Lock E31?

Choose Eufy Smart Lock E31 if your priority is battery life and connectivity and that matters more than price.

Who should buy Philips 4200 Series Smart Deadbolt with Door Lever?

Choose Philips 4200 Series Smart Deadbolt with Door Lever if your priority is price and rating and that matters more than battery life.

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Full comparison table

Compare all 59 Door Locks side by side

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  • 59 Door Locks
  • 56 specs compared
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