Is 70mai a reputable dash cam brand?

Yes. 70mai has a genuine, established track record specifically in the dash cam category. That sets it apart from many generic unbranded listings in the budget tier of this market.

What resolution does the M310 record at?

1296P (2304 × 1296) at 30fps, per 70mai's specification. That's a step above standard 1080p and a reasonable middle ground for a budget-tier front-only camera.

Does the M310 include a memory card?

Check the current listing for included storage. This varies by bundle, and sellers occasionally change what ships in the box. Buying a separate high-endurance card is worth considering regardless, given the demands of continuous-loop recording on a budget-tier camera. See best SD cards .

Does the 70mai M310 have parking mode?

Yes, but only with 70mai's optional Hardwire Kit (UP03), sold separately. Once it's installed, 70mai lists time-lapse parking recording and G-sensor-triggered surveillance clips; without it, the camera records only while the car is running.

How is the M310 powered in the car?

Like most dash cams, it plugs into the car's 12V socket or a fuse-box hardwire kit for continuous power while driving. 70mai lists a small 300mAh built-in battery, which is there to save the current clip if power cuts out suddenly rather than to run the camera for long periods.

Does the 70mai M310 use loop recording?

Yes, loop recording is standard on dash cams in this category, including the M310. Older footage is automatically overwritten once the card fills, unless a clip is locked by an impact sensor or manually protected. This is why a high-endurance card matters — the card is writing new footage constantly during every drive.

Is the 70mai app good?

Owners describe the 70mai companion app as functional and straightforward for basic tasks like WiFi transfer of clips and adjusting settings, rather than a feature-rich, polished experience. It covers what a budget-tier buyer typically needs without extra complexity.

How does the M310 compare to unbranded dash cams at a similar price?

The key difference is brand accountability. An unbranded generic dash cam at a similar price may or may not have real customer support, firmware updates, or a track record, while 70mai has an established history specifically in the dash cam category. Reviewers consistently cite this as the reason to pick 70mai over an anonymous alternative even at a comparable price.

Does the M310 have GPS built in?

Check the current listing for GPS inclusion — budget-tier dash cams frequently omit built-in GPS to hit a lower price point, adding it only on higher-tier models. GPS logs speed and location alongside footage, useful for insurance claims, but is not essential for basic accident-evidence recording.

Will the M310 work in extreme heat inside a parked car?

Dash cams generally have a stated operating temperature range, and extended exposure to extreme in-car heat is a known stress factor for the internal battery or capacitor across the whole category, not specific to this model. Check the current listing's operating temperature spec, and avoid leaving any dash cam running in direct summer sun for extended periods if parking mode isn't in use.

Is the 70mai M310 a good dash cam for car first-time buyers?

Yes, it's a reasonable first dash cam for someone who has never owned one. Setup is simple, the price is low, and 70mai's established support means firmware updates and customer service are more likely to be there if something goes wrong, compared to an anonymous budget alternative with no real brand behind it.

70mai Dash Cam M310 Review 2026: Specs, Rating, Verdict

Written & researched by Dale Ferris Smart Home Editor

Updated September 2026

Affiliate Disclosure: Some links on this page are affiliate links. As an Amazon Associate, we earn from qualifying purchases — at no extra cost to you. We do not buy, install, or physically handle the cameras we cover; our rankings come from aggregated owner reviews, ratings and expert consensus. Commissions never change our verdicts. We're reader-supported: commissions fund hosting, research and updates, so if a guide helped, buying through our links keeps it going. How we rank · full disclosure.

How we’re funded: the link below is an affiliate link — buy through it and we earn a small commission at no cost to you. It never changes a verdict. We do not buy or physically handle this camera; the review below is built from aggregated owner reviews and the manufacturer’s published specifications. See how we rank and our affiliate disclosure.

70mai

70mai Dash Cam M310

Owner Rated · Verified reviews

The 70mai Dash Cam M310 is a well-reviewed budget dash cam from an established brand, at the lowest price on this site.

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In Plain English

The 70mai M310 is a small, cheap dash cam that records the road ahead of your car. It has no screen, so you set it up and watch clips through an app on your phone.

Think of it as a basic, reliable car radio rather than a full entertainment system. It does the main job well, which is recording clear video of the road in case of a crash, but it skips extras like a rear camera.

It has a G-sensor (a motion sensor that feels a sudden jolt). When it senses a crash, it saves that clip so it won’t be recorded over. Parking mode, which records while the car is off, needs a separate wiring kit.

The one thing to do: pair it with a high-endurance memory card between 16GB and 256GB, and format the card in the camera before your first drive.

Full Specifications

Resolution	1296P (2304 × 1296), 30fps
Field of view	130°
Aperture	F2.0
microSD support	16GB to 256GB
Built-in battery	300mAh
Voice control	Yes (English and Mandarin only)
Parking mode	With optional 70mai Hardwire Kit UP03
Design	Compact, smart
Brand	70mai — established dash cam specialist

Summary

The 70mai Dash Cam M310 holds a solid rating across a deep base of verified owner ratings. It’s the lowest-priced camera on this site’s dash cam hub, from 70mai, a brand with genuine dedicated dash cam pedigree rather than a generic unbranded listing.

What owners praise

The price-to-quality ratio is the most repeated theme, with owners specifically noting 1296P QHD resolution as a real step up from basic 1080p at this price point. Brand reliability and genuine support are also mentioned favorably relative to unbranded alternatives.

What owners complain about

As a budget-tier camera, some reviews note fewer advanced features (parking mode needs a separately sold hardwire kit, basic app) compared to the higher-priced options on this hub — an expected tradeoff at this price.

Design and Build Quality

The 70mai M310 uses a compact, screen-free body that mounts behind the rearview mirror and stays mostly out of sight. Owners describe the plastic housing as solid for a budget-tier camera, without the loose or creaky feel some unbranded units get criticized for. There's no built-in display, which keeps the unit small, but means initial aiming and setup happens through the 70mai app on a phone rather than a screen on the camera itself. The mount uses an adhesive or suction base typical of the category, and reviewers generally describe it as secure once installed correctly.

Installation Experience

Setup is a basic dash cam job: mount the camera behind the mirror, run the power cable along the windshield trim to the 12V socket, and pair it with the 70mai app over WiFi. Most owners report finishing in 15 to 30 minutes with no special tools. The cable-routing step is the most fiddly part, as with any dash cam, and tucking it under the headliner and A-pillar trim gives the cleanest finish. Anyone wanting parking-mode coverage with a hardwire kit should budget extra time, or expect to pay an installer, since that involves tapping into the fuse box rather than the simple 12V-socket plug-in.

1296P QHD Video Quality

The M310 records at 1296P QHD, a genuine step up from the 1080p sensors common at this price point. Reviewers describe daytime footage as clear enough to read license plates and road signs at typical driving distances, which is the core job of any dash cam. Night footage is usable but shows the expected softening and increased noise common to budget-tier sensors in low light — a real but understandable tradeoff for the low price. As a front-only camera, it does not capture rear or cabin footage; drivers who want that should look at the dual-channel REDTIGER F7NP review instead.

70mai App, Impact Sensor and WiFi Transfer

The 70mai app handles WiFi clip transfer, settings adjustment, and event-clip review without needing to pull the memory card each time. Owners describe the transfer process as reasonably quick for short clips, though transferring long recordings over WiFi takes longer than simply removing the card and using a reader. Feature-wise the M310 sticks to the essentials: loop recording, an impact sensor that locks and protects a clip automatically (70mai lists a 5-second pre-roll plus 25 seconds after the event), and basic exposure and resolution settings. It also supports voice control, in English and Mandarin only, and time-lapse parking recording once the optional UP03 hardwire kit is installed. What it skips are the higher-resolution sensors and extra channels of 70mai's pricier models, which keeps the price down for buyers who just want reliable accident evidence.

Power and Heat Tolerance

Like most dash cams, the M310 draws power from the car's 12V socket or a hardwire kit rather than running solely on an internal battery. A small 300mAh built-in battery saves the current clip if power cuts suddenly. Owners in hot climates note that any dash cam, this one included, can shut down or show warnings during extreme summer heat while parked, since the internal electronics have a stated operating temperature range. That's a category-wide limitation, not specific to the M310, and a reason parking-mode-capable models often include extra heat management.

Value as a Budget Dash Cam

As a budget dash cam, the M310's job is simple: capture clear front footage reliably and cheaply. It does that well, per the review base, without the frills of pricier dual-channel or parking-mode systems. For a driver whose only goal is documented evidence of who was at fault in a collision, spending more for extra channels or features is not always necessary. The M310 is a reasonable starting point specifically because it comes from an established dash cam brand rather than an anonymous budget listing with no track record.

70mai Dash Cam M310 Versus Higher-Tier 70mai Models

70mai sells several dash cam tiers above the M310, adding features like higher-resolution sensors and extra camera channels as price climbs. The M310 sits at the entry point of that lineup. Reviewers who've compared 70mai models generally say the step up in image quality from the M310 to the mid-tier options is real but modest, while the jump in price for extra channels is larger. For a driver who mainly wants dependable front-facing accident evidence, the M310 captures most of the practical value the brand offers at a fraction of the cost of its flagship dash cam models.

Who It’s For

Budget-conscious buyers who want a genuine, established brand rather than an unrecognized generic dash cam at a similar price.

Who Should Skip It

If you want richer features like dual-channel coverage or a higher-resolution sensor, see best dash cam for higher-tier options.

Storage and Card Recommendations

Continuous loop recording writes to the memory card constantly during every drive, which wears out a standard consumer microSD card faster than normal file storage. A high-endurance card rated specifically for dash cam or security camera use lasts meaningfully longer under that write load. 70mai lists support for microSD cards from 16GB up to 256GB, so there's no point buying a larger card than that, and format any new card in the camera itself, not just on a computer, before the first drive.

Tip Clear old locked files now and then. Locked clips take space the loop can no longer reuse, so clearing them keeps room for the next one.

Pros and Cons

Pros: lowest price on this hub, established dash cam brand, 1296P QHD resolution, compact design.

Cons: fewer advanced features than higher-priced options, basic app experience.

Going Deeper: What the Impact Sensor Actually Saves

A dash cam never stops recording while it has power, so the useful question is what happens to the seconds around a crash. 70mai’s M310 specifications say the built-in G-sensor triggers a 30-second video when it detects a collision. That clip is made up of a 5-second pre-roll plus 25 seconds after the event. The pre-roll matters because the camera can only “look back” if it was already holding the last few seconds of footage when the jolt arrived. Loop recording is what makes that possible.

That 30-second total lines up with California’s rules. California Vehicle Code section 26708 defines a video event recorder as one that records continuously in a digital loop but saves video only when triggered, and says such recorders shall store no more than 30 seconds before and after a triggering event. The same section requires a notice in the vehicle saying a passenger’s conversation may be recorded. It also limits where the recorder can be mounted: a 7-inch square in the lower corner farthest from the driver, a 5-inch square in the lower corner nearest the driver outside an airbag zone, or a 5-inch square at the top center of the windshield.

The small battery has a narrow job. 70mai lists a 300mAh built-in battery. As the review above notes, it exists to save the current clip if power cuts suddenly, rather than to run the camera. That is also why parking mode needs the separate UP03 hardwire kit, which 70mai says is required for all parking surveillance functions.

Finally, the G-sensor can only lock what the card can hold. 70mai lists support for 16GB to 256GB microSD cards, and locked clips take space the loop can no longer reuse. Clearing old locked files now and then keeps room for the next one.

Verdict

The best budget entry point for a driver who wants a genuine brand rather than an unrecognized generic listing. See best dash cam for car for how it compares against the field.