- Wi-Fi 2.4 GHz
- Wi-Fi 2.4/5 GHz
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| Feature | EZVIZ CP4 | Reolink Doorbell WiFi | Winner |
|---|---|---|---|
| Price | £109.99 | $149.99 | EZVIZ CP4 |
| Rating | 4.3 | 4.1 | EZVIZ CP4 |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, 5 GHz WiFi | Reolink Doorbell WiFi |
| Alerts | Motion, People | Motion, People, Packages, Animals, Vehicles | Reolink Doorbell WiFi |
| Customizable Motion Zones | NO | YES | Reolink Doorbell WiFi |
| Voice Changing | YES | NO | EZVIZ CP4 |
| Automatic Replies | NO | YES | Reolink Doorbell WiFi |
| Warranty | 2 years | 2 years | Tie |
| Integrations | Google Home, Alexa, Home Assistant | Google Home, Alexa, Home Assistant | Tie |
| Storage | MicroSD Card Slot, Cloud | MicroSD Card Slot, Cloud | Tie |
What the differences mean
How it is installed
The Reolink Doorbell WiFi is a wired doorbell that replaces an existing one and needs 12 to 24V. The EZVIZ CP4 is a battery peephole camera that fits the viewer hole already in the door, so it asks for no wiring and no drilling.
Video quality
The Reolink Doorbell WiFi records 2K with black-and-white night vision and a tall head-to-toe view. The EZVIZ CP4 records 1080p with a wide 166-degree diagonal view and infrared night vision up to about 5 m, so the Reolink is the sharper of the two.
Wireless
The Reolink Doorbell WiFi uses dual-band 2.4 and 5 GHz Wi-Fi. The EZVIZ CP4 is limited to 2.4 GHz, which does not matter much on a wired peephole but can be a bottleneck for a crowded network.
Smart detection
The Reolink Doorbell WiFi separates people, packages and vehicles and lets you draw motion zones and set automatic quick replies. The EZVIZ CP4 offers motion and human-shape detection only, with three PIR sensitivity levels and no zones, which is why its battery suffers on a busy doorway.
Power
The Reolink Doorbell WiFi never needs charging because it runs on doorbell wiring. The EZVIZ CP4 runs on a rechargeable battery, which frees it from wiring but ties its runtime to how often people walk past.
Weather and placement
The Reolink Doorbell WiFi is IP65 rated for outdoor use. The EZVIZ CP4 is not waterproof, so it belongs on a sheltered apartment door or a porch rather than a door fully exposed to rain.
Which one to buy if
- you want sharp video and local recording with no subscription on a wired door
The Reolink Doorbell WiFi records 2K to a microSD card or NVR, with person, package and vehicle detection and no monthly fee.
- you rent an apartment and cannot drill or wire a doorbell
The EZVIZ CP4 replaces the peephole and needs no holes or cabling, so it comes off as cleanly as it goes on.
- you want a screen inside the home rather than a phone only
The EZVIZ CP4 includes an indoor touchscreen that doubles as the chime and can wake on motion.
- your doorway faces a street or a busy corridor
A wired doorbell does not depend on a battery, so constant passers-by cannot drain it the way they drain the EZVIZ CP4.
- you want to draw detection zones so only the doorstep matters
The Reolink Doorbell WiFi supports customizable motion zones and filtered alerts; the EZVIZ CP4 does not.
- + Price: £109.99
- + Rating: 4.3
- + Voice Changing: YES
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
- - Alerts: Motion, People vs Motion, People, Packages, Animals, Vehicles
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
- + Alerts: Motion, People, Packages, Animals, Vehicles
- + Customizable Motion Zones: YES
- - Price: $149.99 vs £109.99
- - Rating: 4.1 vs 4.3
What owners say
EZVIZ CP4 owners are delighted by how neatly it drops into an existing peephole with no drilling and no wiring, often finishing in under half an hour, and they single out the indoor touchscreen that anyone in the household can use, including older parents and children. Picture quality day and night draws praise, as does the option to record to a memory card and skip a subscription, with the warning that battery life depends entirely on traffic: months on a quiet landing, about a week where the door faces a street. Reolink Doorbell WiFi owners talk about dropping paid subscriptions and storing weeks of 2K footage locally, with clean Home Assistant and NVR integration and configurable people, package and vehicle alerts. Their frustrations are the wired 12 to 24V requirement that rejects an 8V transformer, fiddly QR-code setup, and a tall view that is narrow side to side.
Frequently Asked Questions
Which is better overall: EZVIZ CP4 or Reolink Doorbell WiFi?
For a wired porch, the Reolink Doorbell WiFi, with sharper 2K video, local recording and smarter detection. For an apartment peephole with no wiring, the EZVIZ CP4.
Does the Reolink Doorbell WiFi need a subscription?
No. The Reolink Doorbell WiFi records 24/7 to a microSD card or a Reolink NVR with no monthly fee, and also supports RTSP and WebRTC. An optional cloud plan exists but is not required.
Can the EZVIZ CP4 run without a subscription?
Yes. The EZVIZ CP4 records events to a microSD card of up to 512 GB, so no cloud plan is needed, provided the card is fitted.
Why does the EZVIZ CP4 battery sometimes last only a week?
Its PIR detection has three sensitivity levels and no way to mask an area, so on a door facing a street or busy corridor every passer-by wakes it. On a quiet landing the same doorbell lasts much longer.
Do both work with Home Assistant?
Yes. The EZVIZ CP4 and the Reolink Doorbell WiFi both work with Home Assistant, plus Alexa and Google Home; the Reolink also exposes RTSP and WebRTC. Neither supports Apple HomeKit or Matter.
Is the Reolink Doorbell WiFi weatherproof?
Yes. The Reolink Doorbell WiFi is IP65 rated for outdoor use, while the EZVIZ CP4 is not waterproof and should go on a sheltered door or porch.
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