Video Doorbell Comparison · UK 2026
eufy Video Doorbell S4 vs eufy Video Doorbell E340
Specs, pros and cons compared side by side
Both the eufy Video Doorbell S4 and the eufy Video Doorbell E340 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 S4
Pick it for: 3K (3072 x 3072) with a 180° x 180° view from one camera (the E340: 2K front plus a package camera) · 2.4GHz and 5GHz Wi-Fi 6 (the E340: 2.4GHz only) · eufy Chime 2 included (the E340: no chime in the box)
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eufy Video Doorbell E340
Pick it for: Detachable battery or 8-24V wiring (the S4: wired only, 16-24V AC) · Works with an existing mechanical chime (the S4 bypasses it, so it no longer sounds)
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Quick comparison
| Spec |
eufy Video Doorbell S4 |
eufy Video Doorbell E340 |
| Resolution |
3K (3072 x 3072), 180° x 180° view |
2K front + downward package camera |
| Power |
Wired only (16-24V AC, 10-40 VA) |
Detachable battery (up to 6 months) or wired 8-24V |
| Wi-Fi |
2.4GHz and 5GHz (Wi-Fi 6) |
2.4GHz only |
| IP Rating |
Not stated by eufy |
IP65 |
| Storage |
4GB built in; SD card up to 1TB (not included); eufy HomeBase (not included) |
8GB built in, HomeBase S380 (also HomeBase 2) |
| Chime |
Plug-in eufy Chime 2 included; existing chime bypassed |
Not included: existing mechanical chime, HomeBase, MiniBase Chime or Alexa/Google device |
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)
eufy Video Doorbell E340
Pros
- Package camera covers the doorstep
- Battery or wired
- Built-in storage, no subscription needed
- Works with existing mechanical chimes
Cons
- No chime in the box
- Not digital chimes
- 2.4GHz Wi-Fi only
- No HomeKit
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Which should you buy?
Why choose the eufy Video Doorbell S4
- 3K (3072 x 3072) with a 180° x 180° view from one camera (the E340: 2K front plus a package camera)
- 2.4GHz and 5GHz Wi-Fi 6 (the E340: 2.4GHz only)
- eufy Chime 2 included (the E340: no chime in the box)
Why choose the eufy Video Doorbell E340
- Detachable battery or 8-24V wiring (the S4: wired only, 16-24V AC)
- Works with an existing mechanical chime (the S4 bypasses it, so it no longer sounds)
Related comparisons
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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