Camera Comparison · UK 2026
Blink Outdoor 4 vs eufyCam S4

Specs, pros and cons compared side by side

Both the Blink Outdoor 4 and the eufyCam S4 are security cameras. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. Blink specs come from Blink’s UK support pages; eufy specs come from eufy’s own product pages.

Quick verdict

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Blink Outdoor 4

Pick it for: Runs on 2x AA lithium cells, up to 2 years with default settings (the S4: 10,000mAh swappable battery)

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eufyCam S4

Pick it for: 4K bullet camera plus a 2K tracking PTZ camera (the Blink: 1080p) · Works without a HomeBase (the Blink needs a Sync Module) · 32GB built in, plus microSD up to 256GB (the Blink: local clips need a Sync Module 2)

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Quick comparison

Spec Blink Outdoor 4 eufyCam S4
Resolution 1080p HD, 143° diagonal 4K bullet + 2K dual-lens PTZ, 8x hybrid zoom
Power 2x AA lithium, up to 2 years 10,000mAh swappable battery; detachable 5.5W solar; USB-C
Wi-Fi 2.4GHz only 2.4GHz only
Weather rating IP65 IP65
Storage Needs a Sync Module; local with a Sync Module 2 (the Core has none), or cloud with a plan 32GB built in, microSD up to 256GB, HomeBase S380
Smart home Blink app; works with Alexa Alexa and Google Assistant
Blink Outdoor 4

Pros

  • Long battery life on AA lithium cells
  • Wire-free install
  • IP65 weather rating
  • Works with the Floodlight Mount and Solaris

Cons

  • 1080p, not 2K
  • Needs a Sync Module
  • Sync Module Core in the bundle has no local storage
  • Person Detection needs a Blink plan
eufyCam S4

Pros

  • Wide view and a tracking close-up in one camera
  • Works without a HomeBase
  • Swappable battery and solar panel
  • 24/7 recording when wired

Cons

  • 2.4GHz Wi-Fi only
  • 24/7 recording needs direct power
  • Some features need HomeBase S380
  • eufy’s FAQ says HomeKit is not currently supported

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Which should you buy?

Why choose the Blink Outdoor 4

  • Runs on 2x AA lithium cells, up to 2 years with default settings (the S4: 10,000mAh swappable battery)
Why choose the eufyCam S4

  • 4K bullet camera plus a 2K tracking PTZ camera (the Blink: 1080p)
  • Works without a HomeBase (the Blink needs a Sync Module)
  • 32GB built in, plus microSD up to 256GB (the Blink: local clips need a Sync Module 2)

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