Quick verdict from our eufyCam S3 Pro review: the eufyCam S3 Pro is the best wire-free security camera system you can buy without a monthly fee. It records sharp 4K video, has some of the best color night vision in a battery camera, uses radar to cut false alerts, and charges itself from a built-in solar panel. Everything saves to the included HomeBase 3, so there’s nothing to pay after you buy it. The catch is the up-front price of the kit.
How we put this review together: written by Md. Mehedi Hasan for TopSmartGear, using eufy’s specifications, independent expert reviews and verified owner feedback. This is a research-based review, not a hands-on test. Sources include eufy’s official eufyCam S3 Pro page. Read how we review.
eufyCam S3 Pro at a glance
| Spec | eufyCam S3 Pro |
|---|---|
| Resolution | 4K |
| Field of view | 135 degrees, 8x digital zoom |
| Night vision | Color night vision plus built-in spotlight |
| Motion detection | Radar plus AI for people, pets, vehicles and faces |
| Power | Battery with integrated solar panel; optional external panel or wired mode |
| Storage | Local, on HomeBase 3 (the 2-cam kit includes a 1TB drive) |
| Weatherproofing | IP67 |
| Works with | eufy app, Alexa, Google Home, Apple HomeKit Secure Video |
| Monthly fee | None required |
Video and night vision
Daytime 4K footage is crisp enough to read details at the edge of a driveway, and reviewers consistently single out the night vision. Instead of the usual grainy black-and-white, the S3 Pro shows color at night with very little light, and the built-in spotlight can switch on when someone walks up. Frame rate is lower than on some wired cameras, so fast movement can look slightly less smooth, but for identifying people and cars it’s among the best battery cameras available.
Detection: radar cuts false alerts
Most battery cameras use a heat (PIR) sensor that triggers on cars, shadows and swaying branches. The S3 Pro adds radar, which measures distance and movement, so you can tell it to ignore anything outside a set range. Combined with on-device AI that sorts people, pets and vehicles, and can learn familiar faces, owners report far fewer pointless notifications. All of this runs on the HomeBase, without a subscription.
Solar power and battery
A solar panel built into the top of each camera tops up the battery during the day. In a spot with a few hours of direct sun, most owners say they never need to charge it. Under deep eaves or in a shaded north-facing spot, the integrated panel can’t do much, and you’ll want eufy’s separate solar panel or the wired mode (which also unlocks 24/7 recording). Plan where the sun falls before you drill.
Storage and privacy
Clips save to the HomeBase 3 inside your home. The 2-camera kit includes a 1TB drive, which is enough for months of event clips, and you can expand storage. Because nothing has to leave the house, there’s no ongoing fee. eufy faced criticism in 2022 over how some camera thumbnails were handled in the cloud; the company changed its practices afterward. If privacy is a priority, keep the firmware updated and use two-factor sign-in on your eufy account.
Pros and cons
- Good: 4K video, excellent color night vision, radar-assisted detection, solar charging, free local storage, HomeKit Secure Video support.
- Watch out: the kit costs a lot up front; the integrated panel needs direct sun; you need the HomeBase for the full feature set.
eufyCam S3 Pro vs the alternatives
- Arlo Pro 5S 2K: slicker app and great detection, but you need an Arlo Secure plan to save video. See our Arlo Pro 5S review and Arlo vs eufy.
- Ring cameras: best for Alexa homes, but recording needs a Ring plan. Compare in eufy vs Ring.
- On a tighter budget: see our best budget security cameras and best solar security cameras.
Frequently asked questions
Does the eufyCam S3 Pro need a subscription?
No. Recording, AI detection and face recognition all work without a plan because video is stored on the HomeBase 3. eufy sells optional cloud backup if you want an off-site copy.
Can I add an S3 Pro to an existing eufy HomeBase?
It’s designed for the HomeBase 3. Check eufy’s compatibility list before buying an add-on camera for an older base station.
Will it work in winter?
Yes, but short, cloudy days mean less solar charging, so the battery may slowly drain in northern winters. Owners in those areas often add the external solar panel or charge it once or twice a season.
Final verdict
If you want top-tier wire-free cameras and hate monthly fees, the eufyCam S3 Pro is the one to get. Wait for a sale if you can: eufy kits are often discounted around Black Friday. See all our picks in the best home security cameras guide and check our smart home deals page.
