Video Doorbell Comparison · UK 2026
eufy Video Doorbell C30 vs eufy Video Doorbell S4
Specs, pros and cons compared side by side
Both the eufy Video Doorbell C30 and the eufy Video Doorbell S4 are video doorbells. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. eufy specs come from eufy’s own product pages. If you hardwire a doorbell, turn off the power at the fuse box or breaker before touching any wiring, and use a qualified electrician if you are not sure.
Quick verdict
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eufy Video Doorbell C30
Pick it for: Runs on a built-in 5,000mAh battery, with no wiring (the S4: wired only, 16-24V AC)
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eufy Video Doorbell S4
Pick it for: 3K (3072 x 3072) with a 180° x 180° view (the C30: 2K, 16:9) · 2.4GHz and 5GHz Wi-Fi 6 (the C30: 2.4GHz only) · 4GB built in plus SD cards up to 1TB (the C30: microSD up to 128GB)
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Quick comparison
| Spec |
eufy Video Doorbell C30 |
eufy Video Doorbell S4 |
| Resolution |
2K, 16:9 |
3K (3072 x 3072), 180° x 180° view |
| Power |
Built-in 5,000mAh battery only |
Wired only (16-24V AC, 10-40 VA) |
| Wi-Fi |
2.4GHz only |
2.4GHz and 5GHz (Wi-Fi 6) |
| Storage |
microSD up to 128GB, HomeBase 3 |
4GB built in; SD card up to 1TB (not included); eufy HomeBase (not included) |
eufy Video Doorbell C30
Pros
- Wire-free and easy to fit
- microSD storage
Cons
- Battery is built in
- Does not work with existing chimes
- No 24/7 recording or pre-roll
- No HomeKit
eufy Video Doorbell S4
Pros
- 3K video with a 180° x 180° head-to-toe view
- Colour night vision with dual spotlights
- Comes with a eufy Chime 2
- Local storage with no monthly fee: 4GB built in, plus an SD card slot
- Radar and dual PIR detection
- 2.4GHz and 5GHz Wi-Fi 6 (Irish spec table)
Cons
- Wired only: needs existing doorbell wiring and a 16-24V AC, 10-40 VA transformer (eufy’s S4 user guide)
- Your existing chime is bypassed and no longer sounds (eufy’s S4 user guide)
- Apple HomeKit needs a HomeBase S380, per eufy’s Irish and US pages
- In other smart home apps, live view is fixed, without VR Mode or OmniTrack (eufy’s Irish page)
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Which should you buy?
Why choose the eufy Video Doorbell C30
- Runs on a built-in 5,000mAh battery, with no wiring (the S4: wired only, 16-24V AC)
Why choose the eufy Video Doorbell S4
- 3K (3072 x 3072) with a 180° x 180° view (the C30: 2K, 16:9)
- 2.4GHz and 5GHz Wi-Fi 6 (the C30: 2.4GHz only)
- 4GB built in plus SD cards up to 1TB (the C30: microSD up to 128GB)
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Need a hand with this?
If the wiring, transformer or power supply is beyond a DIY job, it is worth having a qualified electrician look at it. You can compare up to 3 quotes from local electricians.
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