Nextbase iQ.

The Gavler Review.

Nextbase iQ Review: A Connected Car-Security System, Not Just a Dashcam

The Nextbase iQ sits at number four on our Best Dashcams list with an 8.9 — the dashcam to buy when you want a connected security system watching your car, not just a witness recording it. Built-in 4G LTE, cloud backup, a radar-based parking guard, and voice-activated Witness Mode add up to protection no standard recorder matches. But the features that justify the price sit behind a monthly subscription, and the bulky body suits bigger cars better than compact ones.

What it actually is

The iQ is Nextbase's first always-connected dashcam, and it behaves less like a recorder than a security system for a parked or driven car. Built-in 4G LTE — over T-Mobile's US network — keeps it online even with the engine off, streaming Live View to a phone, auto-uploading incident clips to the cloud, and running a radar-based Smart Sense Parking mode that wakes the camera and pushes an alert to your phone within seconds of someone approaching. Voice-activated Witness Mode can share a live feed with a nominated contact in real time, and the suite rounds out with Emergency SOS, an onboard alarm, and Guardian Mode, which sends speed and location alerts — useful for keeping tabs on a teen driver or a valet.

It sells in 1080p, 2K, and 4K versions, all sharing a 140-degree front lens and a 180-degree infrared cabin camera, with a 2K rear camera available as a separate add-on. Unlike Nextbase's own 622GW, the iQ draws power from the OBD-II port rather than a 12V socket, meaning a hardwired-style install is really the starting point rather than an optional upgrade.

In use

Tom's Guide gave the iQ an Editor's Choice and didn't mince words about the reason: "Nextbase's next-gen dash cam packs a staggering amount of smarts and fantastic video quality." On the footage itself, the same review noted: "In the 4K version I tested, video quality is naturally excellent both during day and night, with images appearing clean, crisp and at the correct saturation." TechRadar rated it Recommended, calling it "a one-stop solution" for drivers who want the iQ to "cover pretty much all bases."

But both outlets flagged the same tension that shapes the whole product. TechRadar was direct: "This is a premium model, especially if you head for the 4K unit and the full subscription service." That's the crux of the iQ's value proposition — the hardware and the connected features are two separate purchases, and the second one recurs monthly. There's also no polarizing filter, an odd omission on a flagship dashcam when Nextbase's own cheaper 622GW includes one, and the unit's bulk is enough to intrude on the eyeline in a smaller car.

Where it shines

• Built-in 4G LTE that works with the engine off. Live View streaming, cloud incident uploads, and remote alerts don't require tethering to a phone — a meaningful step up from Wi-Fi-only dashcams that only sync when you're back in the car.
• Radar-based Smart Sense Parking. An onboard radar wakes the camera and pushes a clip to your phone within about seven seconds of someone approaching the parked car, catching more than a standard motion-triggered parking mode would.
• Witness Mode and Guardian Mode add real, distinct use cases. Sharing a live feed with a nominated contact, or getting speed and location alerts on a teen driver or valet, are features no standard recorder-only dashcam offers.

The trade-offs — who should skip it

• The subscription gates most of what makes it special. TechRadar's own review flags this as the defining caveat: the free Solo tier keeps only basic alerts, and the Protect ($9.99/mo) and Protect Plus ($19.99/mo) plans unlock the 4G Live View, cloud backup, and Witness Mode that justify the purchase in the first place.
• You just want sharp 4K footage on a memory card. If that's the whole ask, the iQ is overkill — Nextbase's own cheaper 622GW delivers comparable image quality with a one-time purchase and no ongoing fee.
• No polarizing filter. An odd omission on a flagship, especially since the 622GW — a cheaper, older Nextbase model — includes one standard.
• Bulky body, OBD-II-only power. The unit is large enough to intrude on the eyeline in a small car, and the OBD-II power draw means a proper hardwired-style install is the entry point, not an optional add-on.

How it compares

The most direct comparison is internal: the Nextbase 622GW sits one rank above the iQ on this same list, and the relationship between the two is straightforward — the 622GW is the simpler, cheaper, subscription-free choice with sharper glare-cutting optics via its rotating polarizing filter, while the iQ trades that filter away in exchange for a genuinely differentiated connected-security feature set. Against the Thinkware U3000, the iQ's 4G connectivity and remote monitoring outclass Thinkware's ADAS-focused approach for anyone who prioritizes parked-car security over collision warnings while driving.

The Gavler verdict

An 8.9 for a dashcam that genuinely does something different in the category — Tom's Guide's Editor's Choice and TechRadar's Recommended rating both reflect a real, tested feature set rather than a marketing wish list. The honest question is whether you're the driver who needs a connected security system watching your car around the clock, subscription included, or whether you just want sharp footage when something happens. If it's the former, the iQ has no direct equal in this lineup. If it's the latter, Nextbase's own cheaper 622GW will save you the monthly fee.

Common Questions

Is the Nextbase iQ worth it in 2026?

It depends on whether you want a connected car-security system or just footage on a card. It ranks fourth on Gavler's Best Dashcams list with an 8.9, and Tom's Guide gave it an Editor's Choice for its smarts and 4K footage. But most of what makes it special — live remote viewing, cloud backup, radar-based parking alerts — sits behind a monthly subscription, and the free Solo tier keeps only basic alerts.

Does the Nextbase iQ require a subscription?

The camera itself works without one on the free Solo tier, but that tier keeps only basic alerts. The features that justify the iQ's price — 4G Live View, cloud incident backup, and Witness Mode — require the Protect plan at $9.99/month or Protect Plus at $19.99/month.

How does the Nextbase iQ get power?

It draws power from the OBD-II port rather than a standard 12V socket, so a hardwired-style install is effectively the point of entry rather than an optional upgrade.

Nextbase iQ or Nextbase 622GW?

Choose the 622GW if you want sharp 4K footage with a glare-cutting polarizing filter and no ongoing cost. Choose the iQ if you want always-on 4G connectivity, live remote viewing, and cloud backup, and you're comfortable paying a monthly subscription for those features.