Know when someone hits your parked car.
Wire in the parking watch (hardwire kit in the box, OBD-II adapter free while supplies last) and the H2 locks the clip when it feels an impact, for up to 24 h after you park. With a plan and 4G coverage where the car sits, the alert reaches your phone.
$179 · Free US shipping · 30-day returns
$20 off applied at checkout through October 31, 2026.
No plan needed to record to the card. Live view and alerts: plans from $9.99/mo, and a new H2 has 30 days of Standard to claim in the app. Plans need 4G coverage where the car is parked.
30-day returns — we email a prepaid label · Returns go to Florida, not overseas · 1-year limited warranty
This page mentions a plan a lot. So here is the part most product pages skip.
Front
App
Screen
SentinelInstall
Power
UnitFront
SettingsMount
Menu
GPS
BoxEverything happens on your phone, including aiming the thing at the windshield. The H2 has a 2.99-inch screen, and it does two jobs — one of which is not a screen job at all.
A Hall sensor reads where the display is sitting, so the cover is a hardware state — not a setting in an app that someone could switch back from somewhere else. That is what the clip is doing — open, the screen carries both pictures; shut, the cabin half is simply gone.
The camera also has a microphone, and audio recording is switched off from the factory — the Down button turns it on or off.
InstallStick it on the glass, look at the screen, tilt until the road sits where you want it. No pairing first, no app open in one hand and a camera in the other.
Press OK on the same screen to switch between the road view and the cabin view at any time.
App · liveBuilt-in 4G: no SIM card to buy, no module to bolt on, no carrier account to open. The optional rear camera is a third channel rather than a swap for the cabin one.
Live view, alerts, GPS and voice need an active plan and cellular coverage. Plans start at $9.99 a month with the data included.
In September 2026 we went through the connected dash cams that come up alongside the H2 — the ones with cellular built in, the ones where cellular is a module you buy separately, and the ones that only do local Wi-Fi. On the built-in-cellular side, the pattern was consistent: no display on the camera at all. Several say so in the product title.
Cameras in that group do other things well, and some of them cost less than the H2. What we did not find was one with a screen you could use to aim it — or a screen that doubles as the cover for the cabin lens.
We recheck this every month and we will say so here when it changes. Full specifications are on the H2 specification page.
The road footage on this page came off a production H2 — the watermark and timestamp are the camera’s own.
Real alerts
A 1 TOPS NPU on the camera decides which clips to keep.A 1 TOPS NPU inside the H2 decides what is worth keeping, so nothing waits on your phone being nearby. AOV keeps recording at a low frame rate; Standby sleeps and wakes on an impact.
On the unit
Road 2K 2560×1440 (interpolated from a native 1920×1080 sensor), cabin 1080p — both written to the card in a loop.Road camera 2K 2560×1440, interpolated from a native 1920×1080 sensor — 136.8° diagonal, 115.8° across. Cabin camera 1080p, 138° diagonal. Rear camera optional, sold separately, 1080p, 132° diagonal.
Either mode is set for up to 24 hours at a time, and it ends on its own when battery voltage drops below the threshold.
GPS, GLONASS, Galileo, BeiDou and QZSS — running on the camera itself, with no plan involved.
Pull the full-resolution file onto your phone at the car, instead of waiting on cellular.
The camera has its own 4G, so the alert leaves the car without your phone anywhere near it. All of it needs an active plan and cellular coverage.
The real notification list off an H2 — every alert carries the clip it locked and the minute it happened.
Times show the order things happen, not a delivery guarantee — alerts depend on cellular coverage where the car is parked.
The parking watch needs constant power, and that is where most dash cams lose people — the kit is sold separately and it means opening the fuse box.
Find the OBD-II port under the dash, plug in, route the cable up to the camera. No fuse box, no fuse taps, nothing to unplug when you sell the car.
Watch the install →B+, ACC and ground to the fuse box with the included fuse taps, for an install with no cable showing. Low-voltage protection ends the watch when battery voltage drops below the threshold, so it stops instead of drawing the battery down any further.
Watch the install →The adhesive mount is on the camera and the 64 GB card is already in the slot, so the only decision left is which of the two power kits you want to use.
Setup is hands-on: install the SmartSF App — listed as AIDOVID in both stores — pair over Bluetooth, then press OK on the camera. It reaches your phone after that, not before. Live view, alerts, GPS and voice need an active plan and cellular coverage; a new H2 has 30 days of Standard to claim in the app once it is paired.
Free US shipping · Ships in 1–2 business days
30-day returns · 1-year limited warranty
Five stars, all four of them, and every one is about the parking watch. Quoted word for word — read them at the source.
I live on a busy street and always feared random parking hits. This dash cam’s AI Sentinel picks up even minor bumps. I got a phone alert overnight and reviewed footage right from bed. Saved me from paying for someone else’s mistake.
I was skeptical about AI Sentinel at first. Thought it would give tons of false alarms. Surprised how smart it is. It ignores tree branches swaying, yet immediately alerts for people approaching or light impacts. Exactly what I needed.
Wi-Fi 6 high-speed transfer is fantastic. On top of that, the 24-hour parking mode and AI Sentinel deliver rock-solid parked-car security. Download parking-event clips quickly without removing my SD card.
The privacy-shut interior camera is a nice bonus, yet the star features remain 24H parking mode and smart AI Sentinel. False alerts are minimal. It reliably filters out wind-shaken branches and only flags real human-caused disturbances.
Reproduced in full from our Amazon listing for the same camera — all four reviews it has, nothing left out. Read them on Amazon →
Four buyers, four cars, four streets — their words, not a test result. What AI Sentinel flags depends on where the car is parked, what moves near it and how you set the sensitivity, so we do not promise it will catch or ignore the same things on your street.
No. The 4G is built into the camera and the data comes with the plan, so there is no SIM to source and no carrier account to open. What you do need is an active plan and cellular coverage where the car is parked — that is what the remote half runs on.
Yes, as a dash cam. It records the road and the cabin to the 64 GB card in a loop and locks a clip when it feels an impact, the screen still covers the cabin lens, parking recording still runs on constant power, and Wi-Fi 6 still hands files to your phone at the car. What stops without a plan is the remote half: live view, alerts, GPS in the app, two-way voice and cloud backup.
No. The road camera records 2K 2560×1440, interpolated from a native 1920×1080 sensor. The cabin camera records 1080p, and the optional rear camera records 1080p. The full sensor and lens figures are on the specification page.
Constant power, which is what the two kits in the box are for — an OBD-II adapter that plugs in under the dash, or the hardwire kit with fuse taps for an install with no cable showing. Either mode is set for up to 24 hours at a time, and low-voltage protection ends the watch when battery voltage drops below the threshold.
Yes. The rear camera is a separate unit that plugs into the same H2 over its own cable, so buying the camera on its own today does not close that door. The rear kit is between shipments right now, and we do not list the rear camera as a separate item — once it is back, write to support@smartsfweb.com and we will arrange one for you for $20. Leave your email with the rear-camera link in the buy box above and we will write the day it lands.
Send it back within 30 days. US shipping to you is free, it ships in 1–2 business days, and it carries a 1-year limited warranty. Our shipping and returns page has the details.
That is the whole pitch. Live view, alerts, voice and GPS need an active plan and cellular coverage.
$179 · Free US shipping, ships in 1–2 business days · 30 days to send it back if it isn’t for you
