Video Doorbell Comparison · UK 2026
eufy Video Doorbell S4 vs Blink Wired Doorbell 2K+
Specs, pros and cons compared side by side
Both the eufy Video Doorbell S4 and the Blink Wired Doorbell 2K+ are wired 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 pages, UK pages first, with the S4’s Wi-Fi 6 and HomeKit-with-HomeBase details from eufy’s Irish pages and its 10-40 VA transformer and chime-bypass details from eufy’s S4 user guide; Blink specs come from Blink’s UK 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 (the Wired Doorbell 2K+: up to 1920 x 1920) · 2.4GHz and 5GHz Wi-Fi 6 (the Wired Doorbell 2K+: 2.4GHz only) · 4GB of storage built into the doorbell, plus an SD card slot (the Wired Doorbell 2K+: cloud with a plan, or local with a Sync Module 2) · Google Assistant as well as Alexa (the Wired Doorbell 2K+: Blink app; works with Alexa)
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Blink Wired Doorbell 2K+
Pick it for: Works from an 8-24V AC supply (the S4: 16-24V AC) · Plug-In Adapter option if you have no wiring (the S4: wired only) · IP65 rated (IP rating not stated by eufy for the S4)
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Quick comparison
| Spec |
eufy Video Doorbell S4 |
Blink Wired Doorbell 2K+ |
| Resolution |
3K (3072 x 3072), 180° x 180° view |
Up to 1920 x 1920 (2K), head-to-toe |
| Power |
Wired only (16-24V AC, 10-40 VA) |
Wired, 8-24V AC (10-40 VA), or the Plug-In Adapter if you have no wiring |
| Wi-Fi |
2.4GHz and 5GHz (Wi-Fi 6) |
2.4GHz only |
| Weather rating |
Not stated by eufy |
IP65 |
| Storage |
4GB built in; SD card up to 1TB (not included) |
No Sync Module needed; cloud with a plan, or local with a Sync Module 2 |
| Smart home |
Alexa and Google Assistant; HomeKit with a HomeBase S380 |
Blink app; works with Alexa |
| Chime |
Plug-in eufy Chime 2 included; existing chime bypassed |
Doesn’t ring a mechanical chime; Blink Chime, Mini or Alexa 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)
Blink Wired Doorbell 2K+
Pros
- Always powered, no batteries to replace
- No Sync Module needed
- Head-to-toe 2K view
- Plug-In Adapter option if you have no wiring
Cons
- Does not ring a mechanical chime
- Needs a bypass cable at the chime
- Needs suitable wiring or the Plug-In Adapter
- Smart detection needs a Blink plan
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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 (the Wired Doorbell 2K+: up to 1920 x 1920)
- 2.4GHz and 5GHz Wi-Fi 6 (the Wired Doorbell 2K+: 2.4GHz only)
- 4GB of storage built into the doorbell, plus an SD card slot (the Wired Doorbell 2K+: cloud with a plan, or local with a Sync Module 2)
- Google Assistant as well as Alexa (the Wired Doorbell 2K+: Blink app; works with Alexa)
Why choose the Blink Wired Doorbell 2K+
- Works from an 8-24V AC supply (the S4: 16-24V AC)
- Plug-In Adapter option if you have no wiring (the S4: wired only)
- IP65 rated (IP rating not stated by eufy for the S4)
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