CarCareTruth Score
Decent.
Opens the retailer in a new tab. No account needed to look.
Saved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
This is an affiliate link. I earn a commission from qualifying purchases, at no extra cost to you. Full disclosure
Prices may varyThis product ranks #21 of 29 in Dash Cam.Three above it ↓
Last reviewed June 22, 2026
TL;DR Daytime plate legibility unconfirmed, no independent community footage comparison found at time of review; Rexing specs 4K at the front camera but names no image sensor. Night vision: independent footage comparison not available at time of review (Rexing makes a generic low-light claim only, with no sensor named). Parking mode is 24/7 motion-and-impact trigger with no buffered pre-record; no hardwire kit is documented as included. No supercapacitor is claimed, so the unit is treated as standard lithium-ion-buffered. FCC assumed; no UL/ETL electrical safety certification confirmed.
The R316 is a dual-channel dash cam that records the road ahead in 4K and the vehicle cabin in 1080p at the same time, aimed at drivers who want road-plus-interior coverage rather than front-plus-rear. Rexing states 4K at the front but names no image sensor, and no independent community footage comparison confirming daytime plate legibility or night-vision result was available at time of review, so those are manufacturer claims, not corroborated results. Parking mode is 24/7 motion-and-impact detection that auto-starts recording on movement or impact; it is trigger-based with no documented buffered pre-event recording, and no hardwire kit is documented as included, so keeping the camera powered while parked typically needs a separately purchased kit. Dual-band Wi-Fi transfers clips faster than the 2.4GHz on cheaper Rexing cameras through the Rexing Connect app, though that app has documented connection complaints across the line. A GPS module rides on the suction-cup mount for location and speed stamping.
Best match for rideshare and taxi drivers who want simultaneous road-ahead 4K and in-cabin 1080p coverage in one mid-priced unit, with dual-band Wi-Fi for quick clip transfer. Skip it if rear-of-vehicle road coverage is the goal, since the second camera faces the cabin, not the road behind. Buyers who want a confirmed supercapacitor for hot-climate parking or a named, community-validated sensor should look at the Rexing V3 (front-plus-cabin, supercapacitor) or a dual-STARVIS-2 competitor with a community footage track record.
No PPE is required for installation or normal use. Rexing claims no supercapacitor for the R316, so it is treated as carrying a standard internal lithium-ion buffer battery; route any failed unit to a Call2Recycle or Best Buy drop-off rather than the trash. The device otherwise qualifies for standard e-waste recycling, and no manufacturer take-back program is documented. No independent UL or ETL electrical safety certification was located; FCC radio-emissions compliance is assumed for a US-market wireless device. No California Prop 65 warning is documented on the manufacturer listing.
Yes. The dual-channel R316 records the road ahead in 4K and the vehicle cabin in 1080p at the same time. The second camera faces the interior, not the road behind, which makes it a road-plus-interior cam rather than a front-plus-rear cam. That layout suits rideshare and taxi drivers who need to document both the road and the cabin.
Rexing does not state the R316's power-storage type on its product page, and it makes no supercapacitor claim. Most dash cams in this class use a small internal lithium-ion buffer to finish writing the current clip after power is cut, so the R316 is treated as a standard lithium-ion-buffered cam. If supercapacitor heat durability is a priority, a model that explicitly states a supercapacitor design, such as the Rexing V3 or R88, is the clearer choice.
Rexing does not document a hardwire kit as included with the R316. The 24/7 parking mode uses motion and impact detection to start recording, but to keep the camera powered while the engine is off it typically needs a separately purchased Smart Hardwire Kit. Budget for that add-on if parking protection is the main reason you are buying.
The same R316 page sells two versions. The dual-channel model, covered here, records 4K at the front and 1080p in the cabin. The 3-channel model records 2.5K at the front plus two 1080p channels and sells for less. If front sharpness matters most, the dual-channel 4K front is the higher-resolution front camera; if you want a third angle, the 3-channel trades some front resolution for an extra view.
Rexing markets the front camera at 4K with a general low-light claim but does not name an image sensor for the R316, and no independent community footage comparison confirming its daytime plate legibility or night-vision result was available at time of review. The footage and night-vision signals here are based on the manufacturer's resolution claim, not on corroborated community footage.
Weekly pick
One product, one safety verdict, every week. No spam.
VIOFO
A329S 4K 60FPS Dash Cam Front and Rear
VIOFO
Dash Cam A119 Mini 2
VIOFO
A229 Pro 4K HDR Dash Cam
70mai
4K Dash Cam A810S
As an Amazon Associate I earn from qualifying purchases. Full disclosure
Community
0 postsShare how you use this product
Drop a quick comment or post a full review with photos and a star rating.
Sign in to postNew here? Create a free account.