Head-to-head · Dash Cams
70mai A900 (Dual 4K) vs REDTIGER F7N
Both products side by side: five criteria scores, manufacturer list price and published specs. The conclusion below is generated from the scores — no opinions added.
What the scores say
On overall score, 70mai A900 (Dual 4K) ranks higher: 4.0 vs 3.9.
- 70mai A900 (Dual 4K) leads on spec strength (4.5 vs 3.5), build quality (4.0 vs 3.5).
- REDTIGER F7N leads on warranty & support (4.0 vs 3.0).
- Tied on fit & compatibility, value.
- Lower manufacturer list price: REDTIGER F7N ($139.99 vs $199.99, a $60.00 gap).
| Criterion | 70mai A900 (Dual 4K) | REDTIGER F7N |
|---|---|---|
| Scores | ||
| Overall | 4.0/5 | 3.9/5 |
| Spec strength | 4.5 4K on both channels at 30 fps with HDR and 140° each; the VIOFO A229 Pro 2CH gives 2K in the rear and the REDTIGER F7N 1080p. Loses half a point because 70mai does not name the sensor. | 3.5 4K front and 1080p rear with GPS, but REDTIGER does not name the front sensor and caps storage at 256 GB vs 512 GB (VIOFO) and 1 TB (Vantrue). |
| Build quality | 4.0 Supercapacitor rated to 158°F (70°C), above the 149°F VIOFO A229 Pro and 140°F Thinkware ARC 800; no IP rating published for the rear camera. | 3.5 Supercapacitor and a waterproof rear camera are good signs, but the operating temperature row on REDTIGER's spec table is blank. |
| Fit & compatibility | 4.0 Universal mount and a 64 GB card in the Amazon kit, but the hardwire kit for parking mode is extra; the REDTIGER F7N bundles its kit. | 4.0 Hardwire kit comes in the box, so parking mode costs nothing extra; the rear camera uses adhesive and mounts outside the car. |
| Warranty & support | 3.0 70mai does not state a warranty term on the A900 product page; VIOFO publishes 18–24 months and Vantrue up to 18. | 4.0 18 months, or 24 when bought direct, vs 12 on Garmin and Thinkware. |
| Value | 4.5 $199.99 list for 4K + 4K undercuts the 4K + 2K VIOFO A229 Pro ($349.99) and the 4K + 1080p Thinkware ARC 800 ($329.99); only the REDTIGER F7N ($139.99) is cheaper, with a 1080p rear. | 4.5 $139.99 list buys 4K front, rear cam, GPS, hardwire kit and a 64 GB card; the Garmin Mini 3 at $149.99 is 1080p front-only. |
| Manufacturer list price | ||
| MSRP | $199.99 as of Oct 17, 2026 | $139.99 as of Oct 16, 2026 |
| Published specs | ||
| Front resolution | 4K 3840×2160 @ 30 fps, HDR | 4K 2160p (frame rate not published) |
| Rear resolution | 4K 3840×2160 @ 30 fps, HDR | 1080p, waterproof exterior rear camera |
| Field of view | 140° front / 140° rear | 170° wide angle (front) |
| Screen | 3.18-inch | 3.18-inch |
| Parking mode | 24 h parking surveillance: collision detection and 1 fps time-lapse; 70mai Hardwire Kit required, sold separately | 24 h parking monitor; hardwire kit included free |
| GPS | Built-in 5-system GPS; ADAS alerts | GPS logger built in |
| Wifi | Wi-Fi 6, 2.4 GHz + 5 GHz, up to 25 MB/s export (70mai lab figure) | 5.8 GHz Wi-Fi, up to 20 MB/s transfer |
| Max storage | 32–512 GB microSD (Amazon listing ships with a 64 GB card) | 256 GB microSD (64 GB card included) |
| Power | Supercapacitor, rated 500,000 cycles (70mai lab figure) | Supercapacitor (no battery) |
| Operating temperature | -4°F to 158°F (-20°C to 70°C) | Not published (spec table row left blank) |
| Warranty | Not stated on the product page | 18 months; 24 months when bought from redtigercam.com |
| Sensors | Not named on 70mai's spec page (GizChina reports dual GC8613 sensors; the A900 Ultra uses Sony IMX678) | Not published |
| Aperture | f/1.55 front | Not published |
| Emergency recording | Buffered: up to 190 s before and 30 s after an impact, depending on loop length | Not published |
| Connected | 4G Cloud+ 2.0 compatible: hardware support at launch, full features via a later OTA update; needs the 4G hardwire kit | Not published |
| Dimensions | 91 × 46 × 24.9 mm | Not published |
| Sensor | Not published | Front sensor not named by REDTIGER; night vision marketed as Sony STARVIS 2 + WDR |
| Best for | ||
| Best for | Budget buyers who want rear footage as sharp as the front; Rideshare and delivery drivers who want a 4G remote-view option later | Budget buyers who still want front + rear + GPS; First-time dash cam owners who want everything in one box |
Scores are calculated from the manufacturers' published specifications. BaniCar has not handled either unit. Specs and availability change — verify on the listing.
70mai A900 (Dual 4K) on Amazon REDTIGER F7N on Amazon
Full reviews: 70mai A900 (Dual 4K) · REDTIGER F7N. Updated Oct 17, 2026.