Camera Comparison · UK 2026
eufy SoloCam S340 vs Reolink Altas

Specs, pros and cons compared side by side

Both the eufy SoloCam S340 and the Reolink Altas 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; Reolink specs come from Reolink’s own product pages.

Quick verdict

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eufy SoloCam S340

Pick it for: 3K (2880 x 1620) wide lens plus 2K telephoto, 8x hybrid zoom (the Altas: 4MP, 2560 x 1440) · Pan and tilt with tracking (the Altas: fixed view, no pan or tilt) · Solar panel included (the Altas: Solar Panel 2, 6W, sold separately)

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Reolink Altas

Pick it for: Rated up to 540 days in motion mode on 300 seconds of recording a day (the S340: about 3 months on the same basis) · Continuous recording option on battery (the S340: no 24/7 recording) · Dual-band Wi-Fi 6 (the S340: 2.4GHz only)

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Quick comparison

Spec eufy SoloCam S340 Reolink Altas
Resolution 3K wide + 2K telephoto, 8x hybrid zoom; pan and tilt 4MP (2560 x 1440), 110° diagonal
Power Built-in battery (about 3 months); 2.2W solar panel included 20,000mAh battery, up to 540 days (motion mode); Solar Panel 2 (6W) sold separately
Wi-Fi 2.4GHz only Wi-Fi 6, 2.4GHz and 5GHz
Weather rating Weatherproof (rating not stated) IP66
Storage 8GB built in, HomeBase S380 microSD up to 512GB, Reolink Home Hub and Home Hub Pro, Reolink Cloud
Smart home Alexa and Google Assistant Google Assistant and Alexa
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
Reolink Altas

Pros

  • A 540-day battery rating in motion detection mode
  • Continuous and pre-recording options on battery
  • Colour night vision
  • Dual-band Wi-Fi 6

Cons

  • No infrared night vision
  • Solar panel sold separately
  • Fixed view, no pan or tilt
  • 4MP rather than 4K

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Which should you buy?

Why choose the eufy SoloCam S340

  • 3K (2880 x 1620) wide lens plus 2K telephoto, 8x hybrid zoom (the Altas: 4MP, 2560 x 1440)
  • Pan and tilt with tracking (the Altas: fixed view, no pan or tilt)
  • Solar panel included (the Altas: Solar Panel 2, 6W, sold separately)
Why choose the Reolink Altas

  • Rated up to 540 days in motion mode on 300 seconds of recording a day (the S340: about 3 months on the same basis)
  • Continuous recording option on battery (the S340: no 24/7 recording)
  • Dual-band Wi-Fi 6 (the S340: 2.4GHz only)

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