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Prices may varyThis product ranks #25 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 all-around 1080p across four channels (front, rear, left, right). Night vision: independent footage comparison not available at time of review (the cabin and side cameras carry IR, but no community footage confirms a result). Parking mode is motion and impact trigger with no buffered pre-record, and the Smart Hardwire Kit needed to power it is sold separately. Power-storage type is not documented (no supercapacitor or lithium-battery claim). FCC assumed; no UL/ETL electrical safety certification confirmed.
The C4 is Rexing's all-around 4-channel cam, recording the front, rear, left, and right of the vehicle at 1080p simultaneously. That perimeter layout, not resolution, is the point: every channel is 1080p, so it does not match a 4K front camera for single-view plate detail. The cabin and side cameras add IR night vision, but no independent community footage comparison confirming daytime or nighttime results was available at time of review, so those are manufacturer claims, not corroborated outcomes. Parking mode uses motion and impact detection with a G-sensor to lock clips, but the Smart Hardwire Kit required to power it is sold separately; there is no documented buffered pre-event recording. Rexing states neither a supercapacitor nor a lithium battery for the C4, so its hot-car durability is undocumented. Built-in Wi-Fi pairs with the Rexing Connect App, which has documented connection complaints across the line. A 32GB card ships pre-installed.
Best match for drivers who want all-around perimeter coverage in one unit: four 1080p angles including IR side and cabin views, useful for fleet, rideshare, or anyone wanting to document more than the road ahead and behind. Skip it if single-channel clarity or proven footage is the goal. Every channel is 1080p rather than 4K, the parking-mode hardwire kit is an extra purchase, and there is no community footage validation yet. A confirmed-supercapacitor Rexing such as the V1 4K handles hot-climate parking with a documented power design the C4 does not state.
No PPE is required for installation or normal use. The device qualifies for standard e-waste drop-off (Best Buy, Call2Recycle); no manufacturer take-back program is documented. Rexing does not document the power-storage type for the C4, so neither a supercapacitor nor a lithium-battery disposal pathway is confirmed; the unit is powered from the vehicle through a Type-C port. No independent UL or ETL electrical safety certification was located for the C4; FCC radio-emissions compliance is assumed for a US-market wireless device. No California Prop 65 warning is documented on the manufacturer listing.
The C4 is a 4-channel dash cam that records four 1080p views at the same time: the road ahead, the road behind, and the left and right sides of the vehicle. The cabin and side cameras have IR night vision. It is built for drivers who want all-around perimeter coverage rather than just front, or front and rear.
No. Every channel on the C4 records at 1080p, not 4K. The C4's selling point is coverage breadth, four simultaneous angles, not per-channel resolution. If you want sharper single-channel footage and 4K plate detail, a 4K front camera will out-resolve any one of the C4's 1080p views.
Not on its own. Parking mode uses motion and impact detection to lock footage while the car is off, but it requires a Smart Hardwire Kit that Rexing sells separately to keep the camera powered while parked. The kit is not in the box, so plan on a separate purchase if parking protection is a priority.
Yes. The C4 ships with a pre-installed 32GB microSD card, so it records out of the box. With four channels writing 1080p footage at once, many owners step up to a larger high-endurance card to extend loop-recording time before older clips are overwritten.
Rexing does not state the power-storage type for the C4 on its product page, listing neither a supercapacitor nor a lithium-ion battery. The camera draws power from the vehicle through a Type-C port. Because the design is not documented, this review does not credit the heat-durability advantage that a confirmed supercapacitor would earn.
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