Camera Comparison · UK 2026
eufy SoloCam S340 vs eufyCam E40

Specs, pros and cons compared side by side

Both the eufy SoloCam S340 and the eufyCam E40 are solar battery 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.

Quick verdict

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eufy SoloCam S340

Pick it for: Works without a HomeBase, with 8GB built in (the E40 needs a HomeBase 2 or S380) · 3K wide lens plus a 2K telephoto, 8x hybrid zoom (the E40: 2K 4MP, 130°) · 2.2W solar panel included (the E40: built-in 0.7W panel)

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eufyCam E40

Pick it for: Records 24/7 on direct power (the S340: no 24/7 recording) · Works with Apple Home (the S340: HomeKit not listed by eufy) · Rated IP66 (the S340: no IP rating from eufy)

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Quick comparison

Spec eufy SoloCam S340 eufyCam E40
Resolution 3K wide + 2K telephoto, 8x hybrid zoom; pan and tilt 2K 4MP, 130°, F1.0; MaxColor Vision + infrared
Power Built-in battery (about 3 months); 2.2W solar panel included Battery with built-in 0.7W solar; external solar supported; 24/7 on direct power
IP Rating Weatherproof (rating not stated) IP66
Wi-Fi 2.4GHz only Not stated by eufy
Storage 8GB built in, HomeBase S380 16GB on HomeBase; up to 16TB (S380) or 256GB (HomeBase 2)
Apple HomeKit Not listed by eufy Yes (HomeBase 2 needs firmware v3.3.6.9+)
Smart home Alexa and Google Assistant Apple Home, Alexa and Google Assistant
eufy SoloCam S340

Pros

  • Wide and zoomed views
  • Pan and tilt with tracking
  • Solar panel included
  • Works without a HomeBase

Cons

  • No 24/7 recording
  • Battery is not removable
  • 2.4GHz Wi-Fi only
  • No microSD slot listed
eufyCam E40

Pros

  • Built-in solar
  • 24/7 recording when wired
  • Works with Apple Home
  • Works with HomeBase 2 or S380

Cons

  • Needs a HomeBase
  • Face recognition needs HomeBase S380
  • Power cable for 24/7 sold separately
  • eufy does not list Wi-Fi details

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Which should you buy?

Why choose the eufy SoloCam S340

  • Works without a HomeBase, with 8GB built in (the E40 needs a HomeBase 2 or S380)
  • 3K wide lens plus a 2K telephoto, 8x hybrid zoom (the E40: 2K 4MP, 130°)
  • 2.2W solar panel included (the E40: built-in 0.7W panel)
Why choose the eufyCam E40

  • Records 24/7 on direct power (the S340: no 24/7 recording)
  • Works with Apple Home (the S340: HomeKit not listed by eufy)
  • Rated IP66 (the S340: no IP rating from eufy)

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