Security Cameras / Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) vs Reolink Argus 4 Pro with Solar Panel 2
Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS)
$349.99
VSReolink Argus 4 Pro with Solar Panel 2
$179.99
Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) vs Reolink Argus 4 Pro with Solar Panel 2
Reolink Argus 4 Pro with Solar Panel 2
A 180-degree panorama sold as 4K — brilliant value, so long as you read the fine print.
Wins overall by 2.2 points
Quick Verdict
The Reolink Argus 4 Pro with Solar Panel 2 takes this by a clear 2.2 points. A 180-degree panorama sold as 4K — brilliant value, so long as you read the fine print. The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) only makes sense if it wins on a category you care about more than the total.
The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) and Reolink Argus 4 Pro with Solar Panel 2 are both closely matched security Camera models, and the Reolink Argus 4 Pro with Solar Panel 2 is $170 cheaper than the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) ($179.99 vs $349.99). On Subscription Freedom, the Reolink Argus 4 Pro with Solar Panel 2 leads (9.0 vs 1.5/10) — what the camera still does when you pay nothing — this category's trap dimension, because several drop to live view with no recording at all. On Local Storage, the Reolink Argus 4 Pro with Solar Panel 2 leads (8.0 vs 4.5/10) — recording that stays in your house: card slot, hub, NAS — and whether the card or hub is in the box. On Value, the Reolink Argus 4 Pro with Solar Panel 2 leads (8.5 vs 5.0/10) — what you get for the money once the subscription, the card and the missing adapter are priced in. Overall, the Reolink Argus 4 Pro with Solar Panel 2 scores 7.9/10 across our 8 scoring categories versus 5.7/10 for the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS). Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) | Reolink Argus 4 Pro with Solar Panel 2 |
|---|---|---|
| Price | $349.99 | $179.99 |
| Release Year | 2025 | 2024 |
| Max Resolution | 4K (8 megapixel sensor); 2K, 1080p and 720p modes also offered | 5120x1440 (8MP) — a stitched dual-lens panorama, not a 3840x2160 4K frame, despite the 4K marketing |
| 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 | 15 fps at full resolution, on Reolink's own spec sheet |
| Field of View | 180 degrees diagonal | 180 degrees horizontal, 50 degrees vertical |
| Power Source | Swappable rechargeable battery, USB-C. Only Arlo-certified USB-C or universal solar panels work; the magnetic-base panels do not | 5000mAh built-in (non-removable) battery with a bundled 6W solar panel; USB-A to USB-C charging cable in the box |
| Battery Life Claim | Up to 6 months (Arlo). Trusted Reviews' tester called four months plus more realistic | Reolink publishes no runtime in days. It claims only '30% More Battery Life' than an IR camera and '+12 Days Standby', plus '10 minutes of charging can power the camera for 24 hours' |
| 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 | ColorX full colour at night from an f/1.0 aperture with the spotlight off. Five 2W 6500K spotlights are there if you want them, at a battery cost |
| Weather Rating | Weather-resistant, indoor or outdoor; Arlo does not publish an IP rating | IP66 |
| Wi-Fi / Network | 2.4GHz and 5GHz, but the camera talks to the SmartHub, which Arlo's own FAQ says is required | Dual-band 2.4GHz and 5GHz, Wi-Fi 6 (802.11a/b/g/n/ac/ax) |
| 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 | microSD in the camera. Sources conflict on the ceiling: Reolink's product page says up to 512GB, The Ambient's review says 128GB. A 128GB card ships in some bundles |
| 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 | Everything. Recording, AI person/vehicle/animal detection and playback are all local and free |
| Cheapest Plan ($/mo) | 9.99 | 0✓ |
| RTSP / ONVIF / NVR | No RTSP, no ONVIF, no third-party NVR support | No standalone RTSP or ONVIF. Reolink's own support article states its battery cameras do 'not support RTSP, RTMP, ONVIF and related communication protocols'; you need the separately sold Reolink Home Hub to expose them |
| Warranty | 12 months | 24 months |
| Colors | White, Black | White, Black |
Category Scores
Video Quality
The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) leads clearly here, 8.5 against 7.0 — a 1.5-point margin on real sensor resolution, frame rate and bitrate at the advertised top mode — not the marketing number. If that is what you are buying for, the Reolink Argus 4 Pro with Solar Panel 2 does not close the gap elsewhere.
Night Vision
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 9.0 against 7.5 — a 1.5-point margin on how usable the image is after dark, and whether colour needs the spotlight burning. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Subscription Freedom
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 9.0 against 1.5 — a 7.5-point margin on what the camera still does when you pay nothing — this category's trap dimension, because several drop to live view with no recording at all. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Local Storage
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 8.0 against 4.5 — a 3.5-point margin on recording that stays in your house: card slot, hub, NAS — and whether the card or hub is in the box. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Power & Battery
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 9.0 against 8.0 — a 1.0-point margin on freedom from a power cable: battery capacity, solar top-up, and how honest the runtime claim is. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Installation
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 7.5 against 6.5 — a 1.0-point margin on how much extra hardware, wiring, drilling or network work stands between the box and a working camera. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Openness & Smart Home
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 5.5 against 4.0 — a 1.5-point margin on RTSP, ONVIF, NVR and NAS support plus Alexa/Google/HomeKit/Matter — whether the camera works outside its own app. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Value
The Reolink Argus 4 Pro with Solar Panel 2 leads clearly here, 8.5 against 5.0 — a 3.5-point margin on what you get for the money once the subscription, the card and the missing adapter are priced in. If that is what you are buying for, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) does not close the gap elsewhere.
Best For
Choose the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) if…
- • Video Quality matters most to you — the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) scores 8.5/10 here (real sensor resolution, frame rate and bitrate at the advertised top mode — not the marketing number).
Choose the Reolink Argus 4 Pro with Solar Panel 2 if…
- • Subscription Freedom matters most to you — the Reolink Argus 4 Pro with Solar Panel 2 scores 9.0/10 here (what the camera still does when you pay nothing — this category's trap dimension, because several drop to live view with no recording at all).
- • Local Storage matters most to you — the Reolink Argus 4 Pro with Solar Panel 2 scores 8.0/10 here (recording that stays in your house: card slot, hub, NAS — and whether the card or hub is in the box).
- • Value matters most to you — the Reolink Argus 4 Pro with Solar Panel 2 scores 8.5/10 here (what you get for the money once the subscription, the card and the missing adapter are priced in).
- • Night Vision matters most to you — the Reolink Argus 4 Pro with Solar Panel 2 scores 9.0/10 here (how usable the image is after dark, and whether colour needs the spotlight burning).
- • You want to spend less — it's $170 cheaper.
Pros & Cons
Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS)
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
Reolink Argus 4 Pro with Solar Panel 2
Pros
- +180 degrees with no stitching seam covers a corner or a driveway that would otherwise need two cameras
- +ColorX gives usable colour at night without the spotlight, which is the difference between a night image and a battery drain
- +Dual-band Wi-Fi 6 plus a bundled solar panel plus a 2-year warranty — the best hardware-per-dollar in the battery class
- +No subscription for anything, and the microSD card lives in the camera rather than in a hub you must buy
Cons
- −The '4K' is 5120x1440 from two stitched lenses at 15 fps — it is a panorama, not a 4K frame, and the vertical field is only 50 degrees
- −No standalone RTSP or ONVIF: Reolink's own docs confirm battery cameras need the extra-cost Home Hub before any NVR can see them
- −Reolink publishes no battery runtime figure at all, only relative claims against an unnamed IR camera
- −Sources conflict on the microSD ceiling — 512GB on Reolink's page, 128GB in The Ambient's review
- −No Apple HomeKit support, and reviewers consistently describe the Reolink app as cluttered
Shop by Need
FAQs
Is the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) or Reolink Argus 4 Pro with Solar Panel 2 better overall?+
Based on our 8-category scoring, the Reolink Argus 4 Pro with Solar Panel 2 comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Subscription Freedom, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) or the Reolink Argus 4 Pro with Solar Panel 2?+
The Reolink Argus 4 Pro with Solar Panel 2 scores higher on Subscription Freedom (9.0/10 vs 1.5/10) — what the camera still does when you pay nothing — this category's trap dimension, because several drop to live view with no recording at all.
Which is better for Local Storage, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) or the Reolink Argus 4 Pro with Solar Panel 2?+
The Reolink Argus 4 Pro with Solar Panel 2 scores higher on Local Storage (8.0/10 vs 4.5/10) — recording that stays in your house: card slot, hub, NAS — and whether the card or hub is in the box.
Which is better for Value, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) or the Reolink Argus 4 Pro with Solar Panel 2?+
The Reolink Argus 4 Pro with Solar Panel 2 scores higher on Value (8.5/10 vs 5.0/10) — what you get for the money once the subscription, the card and the missing adapter are priced in.
Which is better for Video Quality, the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) or the Reolink Argus 4 Pro with Solar Panel 2?+
The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) scores higher on Video Quality (8.5/10 vs 7.0/10) — real sensor resolution, frame rate and bitrate at the advertised top mode — not the marketing number.
Is the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) worth the price difference over the Reolink Argus 4 Pro with Solar Panel 2?+
The Reolink Argus 4 Pro with Solar Panel 2 is the cheaper option at $179.99 versus $349.99. Whether the pricier model is "worth it" depends on how much you value its lead in Subscription Freedom.
Which is better suited to my use case?+
The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) is the better fit if you mainly care about battery-powered or solar-ready. The Reolink Argus 4 Pro with Solar Panel 2 is the better fit for no-subscription.
What's the warranty on the Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) vs the Reolink Argus 4 Pro with Solar Panel 2?+
The Arlo Ultra Security Camera 4K HDR, 3rd Gen — 2-Cam Kit with SmartHub (VMS5250-100NAS) ships with a 12-month warranty; the Reolink Argus 4 Pro with Solar Panel 2 ships with a 24-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Reolink Argus 4 Pro with Solar Panel 2 — $179.99
Premium Option
eufy eufyCam S3 Pro 2-Cam Kit with HomeBase 3 (T8892) — $429.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.