Camera Comparison · UK 2026
eufyCam S4 vs Arlo Essential 3

Specs, pros and cons compared side by side

Both the eufyCam S4 and the Arlo Essential 3 are security cameras. 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; Arlo specs come from our Arlo review, checked against Arlo’s own pages.

Quick verdict

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eufyCam S4

Pick it for: Wide view and a tracking close-up in one camera (the Essential 3: fixed view) · Swappable battery (the Essential 3: battery cannot be removed) · 4K bullet camera plus a 2K PTZ (the Essential 3: 2K)

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Arlo Essential 3

Pick it for: Works with Apple Home through an Arlo SmartHub (the S4: not currently supported) · Connects to 2.4GHz or 5GHz Wi-Fi (the S4: 2.4GHz only)

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Quick comparison

Spec eufyCam S4 Arlo Essential 3
Resolution 4K bullet + 2K dual-lens PTZ, 8x hybrid zoom 2K
Power 10,000mAh swappable battery; detachable 5.5W solar; USB-C Integrated battery, charged by USB-C
Wi-Fi 2.4GHz only 2.4GHz or 5GHz
Weather rating IP65 IP65
Storage 32GB built in, microSD up to 256GB, HomeBase S380 Cloud (Arlo Secure); local via an optional SmartHub
Smart home Alexa and Google Assistant Alexa, Google Home, SmartThings, IFTTT, Apple Home (via SmartHub)
Apple HomeKit Not currently supported (eufy FAQ) Yes, through an Arlo SmartHub
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
Arlo Essential 3

Pros

  • No mains cable needed
  • 2K with colour night vision
  • Works with a SmartHub if you want local storage
  • Solar panel supported

Cons

  • Fixed view
  • Battery cannot be removed

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Which should you buy?

Why choose the eufyCam S4

  • Wide view and a tracking close-up in one camera (the Essential 3: fixed view)
  • Swappable battery (the Essential 3: battery cannot be removed)
  • 4K bullet camera plus a 2K PTZ (the Essential 3: 2K)
Why choose the Arlo Essential 3

  • Works with Apple Home through an Arlo SmartHub (the S4: not currently supported)
  • Connects to 2.4GHz or 5GHz Wi-Fi (the S4: 2.4GHz only)

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