aosu Video Doorbell R1 Ultra vs EZVIZ CP4 (2026)

Updated September 2026

Data from Amazon and official aosu and EZVIZ sites.

2026 verdict

Apartment peephole versus outdoor 2K: the EZVIZ CP4 is the more affordable, better-reviewed video doorbell, with a 2-year warranty, Google plus Home Assistant, indoor custom ringtones and a voice changer.

Winner

EZVIZ CP4

€113.99€149.9924% OFF

Buy on Amazon Germany

It records 1080p to its own microSD slot. The aosu Video Doorbell R1 Ultra is the weatherproof 5MP/2K outdoor unit with dual-band Wi-Fi, color night vision, customizable motion zones, an included chime and 8 GB of loop recording in the aosuBase Mini, plus optional wired power, but it stays on Google and Alexa only. Choose the EZVIZ CP4 when you cannot drill and want Home Assistant; choose the aosu Video Doorbell R1 Ultra for a sealed outdoor stoop with 2K and a bundled base.

aosu

aosu Video Doorbell R1 Ultra

13% OFF

$129.99

$149.99

Buy on Amazon USA

Winner

EZVIZ

EZVIZ CP4

24% OFF

€113.99

€149.99

Buy on Amazon Germany

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Feature	aosu Video Doorbell R1 Ultra	EZVIZ CP4	Winner
Price	$129.99	€113.99	EZVIZ CP4
Rating	4.4	4.5	EZVIZ CP4
Warranty	1 year	2 years	EZVIZ CP4
Connectivity	2.4 GHz WiFi, 5 GHz WiFi	2.4 GHz WiFi	aosu Video Doorbell R1 Ultra
Integrations	Google Home, Alexa	Google Home, Alexa, Home Assistant	EZVIZ CP4
Alerts	Motion, People, Packages, Familiar Faces	Motion, People	aosu Video Doorbell R1 Ultra
Customizable Motion Zones	YES	NO	aosu Video Doorbell R1 Ultra
Indoor Custom Ringtone	NO	YES	EZVIZ CP4
Voice Changing	NO	YES	EZVIZ CP4
Battery Life	90 days	90 days	Tie
Storage	Internal, Cloud	MicroSD Card Slot, Cloud	Tie
Outdoor Custom Ringtone	NO	NO	Tie

aosu

aosu Video Doorbell R1 Ultra

13% OFF

$129.99

$149.99

Buy on Amazon USA

+ Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
+ Alerts: Motion, People, Packages, Familiar Faces
+ Customizable Motion Zones: YES
- Price: $129.99 vs €113.99
- Rating: 4.4 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
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
- Alerts: Motion, People vs Motion, People, Packages, Familiar Faces

Frequently Asked Questions

Which is better overall: aosu Video Doorbell R1 Ultra or EZVIZ CP4?

The EZVIZ CP4 is better overall on price, owner rating, warranty, Home Assistant and a voice changer. The aosu Video Doorbell R1 Ultra is the 2K outdoor doorbell with dual-band Wi-Fi, color night vision and motion zones.

How does local storage compare?

The EZVIZ CP4 has a microSD slot of up to 512 GB on the doorbell. The aosu Video Doorbell R1 Ultra has no microSD slot and instead uses 8 GB in the aosuBase Mini with 60-day loop recording.

Which platforms does each doorbell support?

The EZVIZ CP4 works with Google Home, Alexa and Home Assistant. The aosu Video Doorbell R1 Ultra works with Google Home and Alexa only, with no Home Assistant, HomeKit or Matter.

Who should buy the EZVIZ CP4?

Apartment and rental buyers who want a peephole camera, an indoor 4.3-inch screen, Home Assistant and expandable microSD storage.

Who should buy the aosu Video Doorbell R1 Ultra?

Homes that want a weatherproof 2K outdoor doorbell with color night vision, dual-band Wi-Fi, motion zones and a bundled aosuBase Mini, and who are fine staying on Google and Alexa.

Full comparison table

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