70mai 4K A900 Ultra Dash Cam Review: Dual 4K Recording and Features
TechRadar tested the 70mai 4K A900 Ultra dual-camera dash cam across four weeks of daily commutes and road trips. The reviewer praised its dual 4K resolution front and rear, powered by Sony Starvis 2 sensors that deliver sharp license plate details in both daylight and nighttime conditions. Fast Wi-Fi 6 transfers and physical buttons simplify file handling, though unlocking 24-hour parking surveillance requires buying an optional hardwire kit.
Published on Savlume: · Content updated: · Source published:
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AI brief
From the source report
Worth considering if you want 4K recording from both front and rear cameras: the review reports strong detail and after-dark footage, plus features such as GPS and buffered emergency recording. The source reports a $239.99 price on 70mai’s US website against a $299.99 listed price, but does not establish how that reference compares with typical selling prices.
Best suited for Drivers seeking a dual-camera setup with 4K front and rear recording, including buyers who value the reviewer's reported after-dark footage and file-management features.
Highlights
The reviewer says both cameras capture 4K footage and reports good definition in details such as license plates and road signs, which may help when reviewing incidents.
The reviewer found after-dark footage comparable to daylight footage, making the reported performance relevant to drivers who travel at night.
The camera includes GPS and buffered emergency recording that captures footage before and after an incident, according to the source.
The reviewer reports that the 70mai app and Wi-Fi 6 made managing and transferring large 4K files straightforward.
Before you buy
Parking surveillance requires a separately purchased hardwire kit; the reviewer did not test that kit.
The Battery Pack Mini is sold separately, and the reviewer did not test it.
The reviewer notes that dual-camera installation involves additional cabling, which may be a drawback if you prefer a simpler setup.
Product facts & conditions
Model / variant
4K A900 Ultra · Dual-channel front and rear camera bundle
Condition
New
Eligibility
The hardwire kit is sold separately and is needed for parking surveillance features.; The 70mai Battery Pack Mini is an optional extra.
Written by AI from the source report, not a hands-on test. Read source ↗
Media review
Review findings & buying advice
Based on TechRadar Reviews ↗. AI-assisted summary of the source; not a Savlume hands-on test.
TechRadar’s reviewer found the 70mai 4K A900 Ultra easy to set up and use, and praised its 4K front-and-rear footage, including after-dark recording. The reviewer also notes the extra cabling involved and that parking surveillance requires an optional hardwire kit.
Who it may suit Drivers wanting a dual-channel dash cam with 4K recording from both cameras and features for managing footage.
What the source liked
The reviewer reported good definition in license plates and road signs, and said after-dark footage was as good as daylight footage.
The reviewer found setup and everyday file management straightforward using the camera buttons and 70mai app.
The reviewer said the cameras handled variable lighting and weather conditions, including driving through a tunnel.
Trade-offs & limitations
The reviewer notes that routing the additional cables for two cameras can make installation more involved.
The hardwire kit needed for parking surveillance is optional and was not tested by the reviewer.
Source testing context The reviewer installed the cameras in an SUV and used them for around four weeks on daily commutes and longer trips across a mix of roads. The reviewer used the 70mai app to view, manage, and save 4K files.
Questions this review helps answer
Does parking surveillance work without an extra purchase?
No. The source says the optional hardwire kit is needed for parking surveillance.
How did the reviewer assess footage quality at night?
The reviewer said the after-dark footage was as good as footage shot in daylight.
At a glance
Product
70mai 4K A900 Ultra dash cam
Model / variant
4K A900 Ultra · Dual-channel front and rear camera bundle
Condition
New
Sold by
70mai
Availability
US
What to watch out for
Eligibility
The hardwire kit is sold separately and is needed for parking surveillance features.; The 70mai Battery Pack Mini is an optional extra.
Price wording in the source: “In the US, the 70mai 4K A900 Ultra is priced at $299.99, but at the time of writing can be purchased directly from the US 70mai website for $239.99.”
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