Security Cameras / Arlo
Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS)
A 4K camera whose 4K is gated behind the pricier plan, and whose hub is not optional.
Overall score 5.7/10
Pros
- + 180-degree field of view genuinely removes the blind spots a 140-degree camera leaves at a corner
- + SmartHub is in the box on this kit, so local microSD recording is a card away rather than a $100 accessory away
- + Auto-Zoom and Tracking in 4K is the one feature here that no cheaper camera imitates convincingly
- + USB-C battery and swappable cells mean the camera stays on the wall for its whole life
Cons
- − 4K recording and streaming require Arlo's higher Secure Plus tier — on the base plan you get a 4K camera producing 2K files
- − Trusted Reviews found the 4K stream runs at the same bitrate as the 2K Pro 6, so 4K here mostly buys compression artefacts
- − The SmartHub is mandatory. Buy a single Ultra 3 or an add-on camera and it is inert until you also buy a VMB5000
- − The microSD card is never included, on any Ultra 3 SKU
- − $349.99 for two cameras before you have paid a cent of subscription, and no plan means no recording
Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) review: what the specs say
A 4K camera whose 4K is gated behind the pricier plan, and whose hub is not optional. At $349.99, Arlo's 2025 model sits at the premium end of the category — the security Cameras we compare run from $29.99 to $429.99. It scores 5.7/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Video Quality at 8.5/10 — real sensor resolution, frame rate and bitrate at the advertised top mode — not the marketing number. The weakest is Subscription Freedom at 1.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: 4K recording and streaming require Arlo's higher Secure Plus tier — on the base plan you get a 4K camera producing 2K files; and trusted Reviews found the 4K stream runs at the same bitrate as the 2K Pro 6, so 4K here mostly buys compression artefacts. Every specification on this page comes from Arlo's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Max Resolution | 4K (8 megapixel sensor); 2K, 1080p and 720p modes also offered |
| Frame Rate at Top Resolution | Not published by Arlo. Trusted Reviews' testing found the 4K Ultra 3 records at the same bitrate as the 2K Pro 6, so the extra pixels are paid for in compression rather than detail |
| Field of View | 180 degrees diagonal |
| Power Source | Swappable rechargeable battery, USB-C. Only Arlo-certified USB-C or universal solar panels work; the magnetic-base panels do not |
| Battery Life Claim | Up to 6 months (Arlo). Trusted Reviews' tester called four months plus more realistic |
| Night Vision | Colour night vision driven by the built-in spotlight, with IR black-and-white fallback. Trusted Reviews measured about a second of colour stabilisation after the light fires |
| Weather Rating | Weather-resistant, indoor or outdoor; Arlo does not publish an IP rating |
| Wi-Fi / Network | 2.4GHz and 5GHz, but the camera talks to the SmartHub, which Arlo's own FAQ says is required |
| Local Storage | SmartHub with a microSD card. The hub is in this 2-camera kit; the microSD card is not, and for a single or add-on camera the hub is not either |
| With No Subscription | Live view and motion notifications only. Arlo's own FAQ confirms cloud storage, interactive notifications and object detection all stop with the trial |
| Cheapest Plan | 9.99 $/mo |
| RTSP / ONVIF / NVR | No RTSP, no ONVIF, no third-party NVR support |
| Connectivity | 2.4GHz Wi-Fi, 5GHz Wi-Fi, SmartHub (required), Alexa, Google Home, SmartThings, IFTTT |
| Material | Polycarbonate (Arlo does not publish a material spec) |
| Warranty | 12 months |
Compare Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) With
Cheaper Alternative
Reolink Argus 4 Pro with Solar Panel 2 — $179.99
Premium Alternative
eufy eufyCam S3 Pro 2-Cam Kit with HomeBase 3 (T8892) — $429.99