Quick answer
Choose the eufy 4G LTE Cam S330 if you need reliable off-grid security with automatic 4G fallback. Pick the SoloCam S340 if you have a stable Wi-Fi connection and want dual-camera coverage at a lower price.
When LTE matters most
The 4G LTE Cam S330 is built for locations where Wi-Fi is unreliable or absent—think remote cabins, construction sites, or vacation homes. Its auto-switching 4G ensures the feed keeps running even when the primary network drops. The SoloCam S340, on the other hand, relies entirely on Wi-Fi and is best for typical suburban homes with solid coverage.
Power and installation differences
Both cameras are solar-powered, but the S330 includes a larger 9,400 mAh battery for extended autonomy in low-sun conditions. The S340’s solar panel is removable, offering flexibility in placement. Installation is straightforward for both, but the S330’s 4G setup requires a SIM card and mobile data plan, adding a small ongoing cost.
Field of view and resolution trade-offs
The S340 features a dual-camera design with 3K resolution and 360° pan/tilt coverage—ideal for monitoring large yards or driveways without blind spots. The S330 prioritizes connectivity over coverage, offering a single 2K camera with a narrower field of view. For wide-area surveillance, the S340 is the better choice; for remote reliability, the S330 wins.
Trade-offs at a glance
- Connectivity: S330: 4G + Wi-Fi with auto-switch. S340: Wi-Fi only. If you lose Wi-Fi often, the S330 keeps working; the S340 will go offline.
- Power & battery: S330: 9,400 mAh battery + solar. S340: solar with removable panel, smaller battery. S330 handles longer cloudy periods; S340 is fine for daily use in sunny areas.
- Coverage & resolution: S340: 3K dual-camera, 360° coverage. S330: 2K single camera, narrower view. S340 gives you more area per camera; S330 trades coverage for connectivity.
- Cost & ongoing fees: S330: higher upfront ($442.18) plus cellular data plan. S340: lower upfront ($254.18), no cellular fees. S340 is cheaper long-term if you have Wi-Fi; S330 justifies its cost with LTE redundancy.
Product facts
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eufy 4G LTE Cam S330 + Floodlight Camera E340 + HomeBase™ S380: Seamless Connectivity with 4G and Wi-Fi: Ultimate security with uninterrupted access. If Wi-Fi signal is lost, the auto-switching 4G feature swaps to mobile data. This means the camera keeps recording and streaming even when your home internet goes down—critical for off-grid or unreliable network areas.
eufy 4G LTE Cam S330 + Floodlight Camera E340 + HomeBase™ S380
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SoloCam S340 (2 pack): Enhanced Dual-Camera Clarity at Up to 40 ft (12 m): Capture every event around your home in ultra-clear 3K resolution. Enjoy sharp, detailed visuals with 8× zoom. The dual cameras give you a wider, more detailed view of your property without needing a second unit, making it more cost-effective for large spaces.
SoloCam S340 (2 pack)
Which one should you choose?
Best for
- Remote or off-grid locations where Wi-Fi is unreliable or absent
- Users who need uninterrupted surveillance even during network outages
Not ideal for
- Homes with strong, stable Wi-Fi who want maximum coverage per dollar
- Budget-conscious buyers who don’t need LTE fallback
