Eufy Video Doorbell C31 (with Battery Pack) vs EZVIZ CP4

Updated September 2026

Data from Amazon and official Eufy and EZVIZ sites.

2026 verdict

Two battery doorbells, one indoor screen: the EZVIZ CP4 wins this pairing on price, owner rating, a 2-year warranty, indoor custom ringtones and a voice changer.

Winner

EZVIZ CP4

€113.99€149.9924% OFF

Buy on Amazon Germany

It is a peephole kit with a 4.3-inch indoor chime-display and 1080p clips on a microSD card of up to 512 GB. The Eufy Video Doorbell C31 (with Battery Pack) is the 2K outdoor unit with a quick-release battery, automatic replies and local recording to a microSD card of up to 128 GB, plus Google, Alexa and Home Assistant, but the indoor chime is sold separately. Both skip HomeKit and Matter. Pick the EZVIZ CP4 for a no-drill apartment door; pick the Eufy Video Doorbell C31 (with Battery Pack) for a weather-sealed 2K stoop with auto-replies.

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Feature	Eufy Video Doorbell C31 (with Battery Pack)	EZVIZ CP4	Winner
Price	$129.99	€113.99	EZVIZ CP4
Rating	4.0	4.5	EZVIZ CP4
Warranty	1 year	2 years	EZVIZ CP4
Indoor Custom Ringtone	NO	YES	EZVIZ CP4
Voice Changing	NO	YES	EZVIZ CP4
Automatic Replies	YES	NO	Eufy Video Doorbell C31 (with Battery Pack)
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi	Tie
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa, Home Assistant	Tie
Storage	MicroSD Card Slot, Cloud	MicroSD Card Slot, Cloud	Tie
Alerts	Motion, People	Motion, People	Tie
Customizable Motion Zones	NO	NO	Tie
Outdoor Custom Ringtone	NO	NO	Tie

Eufy

Eufy Video Doorbell C31 (with Battery Pack)

$129.99

Buy on Amazon USA

+ Automatic Replies: YES
- Price: $129.99 vs €113.99
- Rating: 4.0 vs 4.5

Winner

EZVIZ

EZVIZ CP4

24% OFF

€113.99

€149.99

Buy on Amazon Germany

+ Price: €113.99
+ Rating: 4.5
+ Warranty: 2 years
- Automatic Replies: NO vs YES

Frequently Asked Questions

Which is better overall: Eufy Video Doorbell C31 (with Battery Pack) or EZVIZ CP4?

The EZVIZ CP4 is better overall on price, owner rating, warranty, indoor custom ringtones and a voice changer. The Eufy Video Doorbell C31 (with Battery Pack) is the 2K outdoor doorbell with automatic replies and a quick-release battery.

Do both include an indoor chime?

The EZVIZ CP4 does: the 4.3-inch indoor touchscreen rings, with up to 5 ringtones. The Eufy Video Doorbell C31 (with Battery Pack) sells its chime separately, so you need that add-on or a Google/Alexa speaker to hear the door indoors.

Can they record without a subscription?

Yes. The EZVIZ CP4 uses a microSD card of up to 512 GB. The Eufy Video Doorbell C31 (with Battery Pack) uses a microSD card of up to 128 GB. Cloud plans are optional on both.

Who should buy the EZVIZ CP4?

Apartment owners and renters who want a peephole camera, a built-in indoor screen and local recording, without buying a separate chime.

Who should buy the Eufy Video Doorbell C31 (with Battery Pack)?

Buyers who want 2K on a weatherproof outdoor doorbell, a swappable battery pack and automatic replies, and who do not need an indoor display in the box.

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