eufy Security 3K Dual Camera

Quick verdict

Based on published specs and editorial comparison, the SoloCam S340 dual-camera trades the S4's 4K for a 3K pan-and-tilt design with stated 360-degree coverage and no blind spots, making it a value-oriented single-mount option. Its solar power and no-monthly-fee model with built-in 8GB suit smaller properties or a single yard where wide sweep matters more than maximum detail. A practical fit for eufy users who want autonomy over a finer field rather than top-tier resolution.

Good for

• Local storage instead of cloud subscriptions
• No-monthly-fee outdoor camera coverage

Not ideal for

• Setups where the needed features sit behind a subscription
• Locations without a suitable power option for the device

Key buying points

• Power — Wired, battery, or solar.
• Smart-home fit — HomeKit, Alexa, Google, Matter/Thread support.
• Subscription terms — What features are locked behind a plan.

What to check before buying

• Confirm whether local storage is included or fee-based
• Check ecosystem support (HomeKit/Alexa/Google/Matter)
• Confirm power option fits the install location
• Read what a subscription unlocks vs the free tier

Specs at a glance

Editorially reviewed: May 2026. Product details may change on Amazon — check current details there.