Our take
Miroir's M631 Ultra Pro combines a native Full HD 1920 × 1080 image with a rechargeable battery, motorized focus, automatic keystone, HDMI, and USB-C video input. The maker lists 700 lumens without an ANSI basis and gives conflicting battery statements of 1.5 and 2 hours, so both should remain visible. Miroir also says AirPlay and screen mirroring are not supported. Its value is the portable high-detail panel and wired source options, not a self-contained streaming platform or a proven long-runtime battery.
Portable Full HD viewing when a built-in battery and wired HDMI or compatible USB-C source matter more than apps or a standardized brightness rating.
It is not an app-equipped projector, a model with a verified ANSI brightness rating, or a guaranteed wireless-mirroring choice for Apple or Android devices.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The manufacturer specifies native 1920 × 1080 Full HD imaging in a portable projector.
- HDMI and USB-C video inputs give compatible devices direct wired source paths.
- Motorized focus and automatic keystone reduce manual setup effort for a mobile unit.
What to weigh up
- The 700-lumen figure is not identified as ANSI and cannot be compared on that basis.
- The product page states both 1.5-hour and 2-hour battery life, leaving the model runtime unresolved.
- AirPlay/screen mirroring is unsupported, and some USB-C devices may need a model-specific adapter.
The key details
| Model covered | M631 |
|---|---|
| Image format | Native Full HD 1920 × 1080 |
| Rated light output | 700 lumens; ANSI basis not stated |
| Placement | Rechargeable battery; HDMI and USB-C video; motorized focus |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
Full HD makes it the detail-focused portable option
Miroir specifies a native 1920 × 1080 image. That is more useful for fine text, subtitles, and detailed video than the SVGA or WVGA panels common in older pocket projectors. It remains a compact portable device, so native resolution does not guarantee high brightness or large-screen visibility. Keep the actual image size and room light modest until the exact unit is evaluated. A higher-resolution source will not compensate for the maker's unstandardized 700-lumen figure or the optical limits of a small projector.
The battery is convenient but its runtime is unclear
The M631 includes a rechargeable battery, but its product page gives both 1.5-hour and 2-hour battery-life statements. Those numbers should not be collapsed into one guaranteed runtime. A used battery may also have less capacity than a new one. For travel, check the exact unit unplugged and have a charging plan if a full film or long presentation could exceed the shorter claim. The projector's battery supports mobility; it does not establish sufficient brightness for any particular outdoor or ambient-light condition.
HDMI and USB-C are wired video paths
Miroir lists HDMI and USB-C video input with USB-C charging. This can connect a computer, phone, or other compatible source directly, but USB-C video depends on the source device supporting video output and may require a device-specific adapter. The page explicitly says AirPlay/screen mirroring is not supported. A buyer who expects to cast wirelessly should plan on a compatible wired source instead. These ports do not establish an integrated streaming operating system or subscription-app support.
Motorized focus and keystone streamline setup
Motorized focus and automatic keystone correction can make quick positioning less fiddly when carrying the unit between rooms. They do not prove optical lens shift or a particular throw ratio. The reviewed product page does not state ultra-short-throw placement, so measure the actual projection distance before expecting it to fit on a shallow shelf. Keystone processing can also change picture geometry; if image shape matters, square the projector to the screen first and use correction only as needed. A portable body is not automatically a close-wall lens.
Do not treat the lumen claim as an ANSI comparison
Miroir lists 700 lumens, but the page does not identify ANSI as the measurement method. Keep that output in the manufacturer's terms rather than ranking it directly against an ANSI-rated projector. The source documents two 3 W speakers and a rechargeable battery, but room size, ambient light, screen surface, battery age, and adapter compatibility still affect a practical setup. Before buying a used M631, verify focus travel, HDMI and USB-C input, charge retention, keystone operation, and the actual included cables. Those are checks for the specific unit, not hands-on results reported here.
What else to compare
For a short portable session with VGA/AV and a documented two-hour battery estimate, compare 3M MP160; for more legacy source ports without verified native HD, compare GPX PJ308W.
Before you buy
Is M631's 700-lumen rating ANSI?
Miroir lists 700 lumens but the reviewed M631 page does not identify the figure as ANSI lumens.
How long is the M631 battery rated to run?
Miroir's page gives both 1.5-hour and 2-hour statements, so the saved evidence does not settle one runtime.
Can the M631 mirror an iPhone over AirPlay?
No. Miroir says AirPlay and screen mirroring are unsupported; use a compatible wired HDMI or USB-C video path.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Miroir M631 Ultra Pro product page ↗ — checked October 11, 2026.
- Miroir M631 Ultra Pro product page ↗ — checked October 11, 2026.
The decision
M631 fits buyers who value native Full HD and wired USB-C/HDMI sources in a portable body and can accept the unresolved brightness basis and runtime.
Is it the right fit?
Check the exact model and today’s offers on Amazon.