The Xiaomi Redmi M100 takes a straightforward approach to the budget smartphone market. Rather than competing primarily on cameras or raw performance, it puts battery capacity at the center of the experience.
Its 7,900mAh battery is the headline feature, supported by 45W wired charging and 22.5W wired reverse charging. The phone also has a large 6.9-inch 120Hz LCD, 5G connectivity, stereo speakers, NFC, a 3.5mm headphone jack, and Android 16 with HyperOS 3.
That sounds like a strong specification sheet for an affordable phone, but the M100 is not a balanced all-rounder in the traditional sense. The display uses a 720 × 1600 resolution, the Snapdragon 4 Gen 5 sits in the entry-level performance class, and the camera hardware is limited to a 13MP rear camera and a 5MP front camera.
There is also the physical cost of the large battery. At 232 grams and 8.8mm thick, the M100 is noticeably heavier and thicker than many conventional budget phones.
So the Redmi M100 is best judged by what it prioritizes and what it gives up to achieve that priority. The important question is not whether a 7,900mAh battery sounds impressive. It is whether the rest of the phone provides enough everyday value to make the additional size and compromises worthwhile.
In this review:
Specifications
| Specification | Xiaomi Redmi M100 |
| Display | 6.9-inch IPS LCD |
| Resolution | 720 × 1600 pixels |
| Refresh Rate | Up to 120Hz |
| Touch Sampling Rate | Up to 240Hz |
| Brightness | Up to 825 nits HBM |
| Processor | Qualcomm Snapdragon 4 Gen 5 |
| Process | 4nm |
| RAM | 6GB / 8GB |
| Storage | 128GB / 256GB |
| Storage Type | UFS 2.2 |
| Rear Camera | 13MP |
| Front Camera | 5MP |
| Video | Up to 1080p at 30fps |
| Battery | 7,900mAh |
| Charging | 45W wired |
| Reverse Charging | Up to 22.5W wired |
| Operating System | Android 16 |
| Interface | HyperOS 3 |
| Cellular | 5G |
| Speakers | Stereo |
| Headphone Jack | 3.5mm |
| NFC | Yes |
| USB | USB Type-C |
| Fingerprint Sensor | Side-mounted |
| Protection | IP64 |
| Dimensions | 170.12 × 78.42 × 8.8mm |
| Weight | 232g |
The official Redmi M100 specifications confirm the display, chipset, memory, storage, cameras, battery, charging, connectivity, and dimensions listed above.
Source: official Redmi M100 specifications.
Key Takeaways
- The 7,900mAh battery is the defining feature of the Redmi M100.
- 45W charging makes the unusually large battery more practical to live with.
- The 6.9-inch 120Hz LCD provides plenty of screen space, although its HD+ resolution is a noticeable compromise at this size.
- The Snapdragon 4 Gen 5 is suitable for everyday tasks and 5G connectivity, but the M100 is not positioned as a high-performance gaming phone.
- The 13MP rear and 5MP front cameras are functional rather than a major reason to buy the phone.
- At 232g, the M100 is relatively heavy, and that is one of the clearest consequences of its large battery.
- Stereo speakers, NFC, a 3.5mm headphone jack, and 5G give the phone a useful set of everyday features.
- The phone launched in China with 8GB/128GB at ¥1,799, 6GB/256GB at ¥1,999, and 8GB/256GB at ¥2,199. These are Chinese launch prices and should not be treated as international retail prices.
Pros & Cons
Pros
- Huge 7,900mAh battery
- 45W wired charging
- 22.5W reverse wired charging
- Large 6.9-inch 120Hz display
- 5G connectivity
- Stereo speakers
- 3.5mm headphone jack
- NFC support
- IP64 dust and splash resistance
- Gorilla Glass protection
- Android 16 with HyperOS 3
- Large screen is useful for reading and media consumption
Cons
- 720 × 1600 HD+ resolution is low for a 6.9-inch display
- 232g weight makes the phone relatively heavy
- Basic 13MP + 5MP camera setup
- Snapdragon 4 Gen 5 is not designed for demanding gaming
- USB 2.0
- China-focused launch means international availability and software/network compatibility need to be checked
- Large battery comes with noticeable increases in size and weight
Design & Build
The Redmi M100 is a large smartphone, and its dimensions make that immediately clear. It measures 170.12 × 78.42 × 8.8mm and weighs 232 grams.
The weight is not surprising when the battery capacity is taken into account, but it still matters in daily use. A 232g phone can feel substantial in a pocket and more noticeable during prolonged one-handed use. Buyers who prefer lightweight devices should take this into account before choosing the M100.
The rear uses a four-equal-depth micro-curved design, giving the back panel some curvature instead of leaving it completely flat. Redmi also adds RGB dynamic lighting around the rear camera area, giving the otherwise practical design a more distinctive appearance.
The phone has an IP64 rating for dust and splash resistance. This is useful protection against everyday exposure, although it is not the same as full waterproofing.
A side-mounted fingerprint reader handles biometric authentication. It is a conventional solution for this segment and avoids the additional cost of an in-display fingerprint system.
The M100 also keeps several features that have become less common on newer smartphones. There is a 3.5mm headphone jack, stereo speakers, NFC, and a USB-C port.
The overall design therefore follows a practical formula. It is not particularly thin or light, but it provides the physical space needed for a very large battery while retaining useful hardware features.
Display
The Redmi M100 has a 6.9-inch IPS LCD with a 720 × 1600 resolution and up to a 120Hz refresh rate.
The size is useful for users who spend a lot of time reading, browsing, watching videos, or using social media. A large display also makes text and interface elements easier to see, particularly for users who prefer larger fonts.
The 120Hz refresh rate is one of the more useful additions. Scrolling through supported applications and moving around the interface should look smoother than on a conventional 60Hz panel. The refresh rate can also adjust depending on the content and application.
Touch sampling can reach 240Hz, which contributes to a responsive feel during touch interactions. It can be useful in games, although the Snapdragon 4 Gen 5 limits how far the phone can be pushed in demanding titles.
The bigger compromise is resolution.
At 6.9 inches, 720 × 1600 pixels gives the display roughly 254 pixels per inch. Text and fine details will therefore appear less crisp than they would on a Full HD+ panel of the same size. This is particularly noticeable when reading small text or looking closely at high-resolution images.
The lower resolution does have a practical advantage: the chipset has fewer pixels to render than it would with a 1080p display. That fits the phone’s emphasis on efficiency, but it does not eliminate the visual compromise.
Brightness reaches up to 825 nits HBM, while Xiaomi also includes eye-care features such as DC dimming and TÜV Rheinland certifications on the display.
The result is a screen that prioritizes size, smoothness, and reasonable outdoor visibility over sharpness. For media consumption and everyday use, it should be comfortable enough. Users who consider display clarity a major buying factor may find the HD+ resolution difficult to overlook.
Performance
The Redmi M100 is powered by Qualcomm’s Snapdragon 4 Gen 5, manufactured on a 4nm process and paired with LPDDR4X RAM and UFS 2.2 storage.
This is an entry-level 5G platform rather than a performance-oriented chipset. That distinction matters because the M100’s large battery could otherwise create expectations of a phone designed for long gaming sessions.
For everyday use, the hardware should be suitable for messaging, web browsing, social media, video streaming, navigation, and common productivity applications. The 120Hz display can also make the interface feel more fluid than the chipset’s position in the market might suggest.
The storage standard is another useful part of the configuration. UFS 2.2 is more capable than older entry-level storage solutions, helping with application loading and general file operations.
The 8GB RAM configuration is the more interesting option for users who regularly switch between several applications. However, RAM capacity alone does not turn the M100 into a high-performance phone. The Snapdragon 4 Gen 5 remains the limiting factor for demanding workloads.
Gaming should therefore be approached with reasonable expectations. Casual and less demanding games should be suitable, while heavier titles are more likely to require reduced graphics settings. The large battery is helpful for long sessions, but it cannot compensate for the limitations of the processor and GPU.
Independent benchmark coverage of the M100 itself is also limited, so benchmark figures from other Snapdragon 4 Gen 5 devices should not be presented as if they were tests performed on this phone.
The practical conclusion is simple: the M100 has enough performance for normal smartphone use, but performance is not its main selling point.
Software
The Redmi M100 launches with Android 16 and HyperOS 3, giving it a current software foundation.
HyperOS provides Xiaomi’s familiar interface and system features, while the M100 also includes several functions aimed at practical everyday use.
One example is the phone’s elderly-care functionality, which can provide larger icons and fonts, louder audio, and additional assistance with unwanted calls. This is consistent with the M100’s large screen and straightforward hardware approach.
The Chinese version also supports features such as Super XiaoAI and Xiaomi Super Island. However, software features can vary by market and version, so buyers importing the phone should not assume that every China-specific feature will work identically in another region.
That regional distinction is important because the M100 launched in China. Software language, Google services, network compatibility, and certain Xiaomi services can therefore depend on the version being sold and the market in which it is used.
From a hardware perspective, HyperOS 3 should have enough resources to handle ordinary tasks on the M100. The more important question for long-term ownership will be software support and update policy for the specific market version, rather than the number of features included at launch.
Camera
The camera system is one of the clearest areas where Xiaomi has kept costs under control.
The rear camera is a single 13MP sensor, while the front camera has a 5MP resolution. There is no ultrawide camera or telephoto camera, so the M100 does not offer the flexibility found on more photography-focused smartphones.
The 13MP main camera should be capable of handling basic daylight photography. Casual snapshots, documents, simple social media photos, and everyday scenes are within the type of use this hardware is suited to.
Low-light photography is a different story. A basic single-camera system has less hardware flexibility than a more advanced multi-camera setup, and software processing cannot completely replace larger sensors or more capable optics.
The front 5MP camera is similarly straightforward. It should cover video calls, face recognition, and occasional selfies, but buyers looking for detailed selfie photography should consider a different device.
The camera application does include several shooting modes, including portrait, Night mode, time-lapse, document mode, dynamic photos, filters, and a Pro mode. These features make the camera more flexible, but they do not change its fundamental hardware limitations.
Video recording is limited to 1080p at 30fps, which is sufficient for everyday clips but leaves the M100 behind phones that offer higher-resolution or higher-frame-rate recording.
The camera setup therefore makes sense only when viewed in context. Xiaomi has allocated much more of the phone’s hardware budget toward battery capacity than photography.
Battery & Charging
The M100’s 7,900mAh battery is the reason the phone stands out.
Capacity this large gives the phone a substantial amount of energy to work with, and the rest of the hardware is reasonably consistent with that objective. The Snapdragon 4 Gen 5 is an efficiency-oriented platform, while the display uses a relatively low 720p resolution rather than a more demanding Full HD+ panel.
Actual battery life will still depend on network conditions, brightness, applications, refresh rate, and usage patterns. Battery capacity alone cannot guarantee a particular number of hours or days.
Charging is rated at 45W, which is important because an almost 8,000mAh battery would otherwise be inconvenient to replenish. Forty-five watts is not exceptional compared with some performance-focused phones, but it is a sensible match for a battery of this size.
The M100 also supports up to 22.5W wired reverse charging. This allows the phone to supply power to compatible devices, making the large battery useful beyond the phone itself.
The charger is included in the Chinese retail package, along with a USB-C cable, protective case, and factory-applied screen protector.
There is also a longer-term battery durability claim associated with the device, but this should be treated as a manufacturer claim rather than an independently verified SPECOVIA result.
The biggest trade-off is physical. A 7,900mAh battery contributes directly to the M100’s 232g weight and 8.8mm thickness.
For users who value endurance above portability, that may be an acceptable exchange. For everyone else, the M100’s size is one of the first things to consider before buying.
If you’re comparing other battery-focused phones, check out our realme Narzo 100x 5G review.
Connectivity & Audio
Connectivity is one area where the M100 is better equipped than its camera hardware might suggest.
The phone supports 5G, giving it access to modern cellular networks where compatible bands and local carrier support are available. It also includes Wi-Fi, Bluetooth 5.1, NFC, GPS, and other standard positioning systems.
NFC is particularly useful for supported contactless functions and device pairing. Its actual payment functionality depends on the region and services supported by the software version.
Audio is another practical strength. The M100 has stereo speakers and retains a 3.5mm headphone jack, giving users the choice between wired and wireless audio without requiring an adapter.
The USB-C port handles charging and data transfer, although it uses USB 2.0 rather than a faster USB standard. That is unlikely to matter for routine charging or small file transfers, but users who frequently move large files over a cable may notice the limitation.
The combination of stereo speakers, a headphone jack, NFC, 5G, and USB-C makes the M100 reasonably versatile for everyday use.
Price & Value
The Redmi M100 launched in China at the following prices:
- 8GB + 128GB — ¥1,799
- 6GB + 256GB — ¥1,999
- 8GB + 256GB — ¥2,199
These are Chinese launch prices, so they should not be used as direct international retail prices. Import costs, taxes, retailer margins, currency conversion, and regional availability can produce a significantly different final price.
At those launch prices, the M100’s value comes from its unusual hardware balance rather than from having the highest specifications in every category.
The 7,900mAh battery is the major differentiator. The 6.9-inch 120Hz display, 5G, stereo speakers, NFC, and headphone jack add practical value, while 45W charging prevents the battery from becoming unnecessarily inconvenient.
The compromises are equally clear. The display is only HD+, the processor is aimed at entry-level workloads, and the camera system is basic. The phone is also heavy.
The 8GB/256GB model is the most sensible configuration for users who plan to keep the phone for a long period and store substantial amounts of media and applications. The extra storage is more meaningful than paying for the phone purely because of additional RAM.
However, the M100 should not be judged as though it were competing to be the most complete smartphone at its price. Its design is built around a particular priority: keeping a large amount of battery capacity available without making the rest of the phone unusable.
That makes its value highly dependent on what the buyer needs. Someone who cares primarily about battery endurance, screen size, and practical connectivity gets a different proposition from someone who places more importance on cameras, display resolution, gaming, or portability.
If you’re also considering another affordable 5G phone, check out our realme P4R 5G review for a closer look at its features and everyday performance.
Who Should Buy the Redmi M100?
Users Who Prioritize Battery Life
The 7,900mAh battery is the strongest reason to consider the M100. It is particularly relevant for people who spend long periods away from power outlets.
Users Who Want a Large Screen
The 6.9-inch display gives the phone plenty of space for reading, video, browsing, and social media.
Users Who Want Practical Features
5G, NFC, stereo speakers, and a 3.5mm headphone jack make the phone flexible for everyday use.
Users Who Do Not Need Advanced Cameras
The camera system is sufficient for basic photography, documents, video calls, and casual snapshots.
15. Who Should Skip the Redmi M100?
Users Who Prefer Lightweight Phones
At 232g, the M100 is not an easy recommendation for anyone who strongly prefers a lighter device.
Users Who Want a Sharp Display
The 6.9-inch HD+ panel is large and smooth, but its pixel density is modest.
Mobile Photographers
The 13MP single rear camera and 5MP selfie camera are clearly basic compared with camera-focused alternatives.
Heavy Gamers
The Snapdragon 4 Gen 5 is designed around efficient everyday performance and 5G rather than high-end gaming.
Final Verdict
The Redmi M100 is a phone with a very clear set of priorities.
Its 7,900mAh battery is not simply a large number on the specification sheet. It shapes the entire device, from the 232g weight to the 8.8mm body and even the decision to use a large HD+ display rather than a sharper, more demanding panel.
That approach gives the M100 a clear place in the budget market. It offers the kind of endurance that can matter more to some users than having a higher-resolution camera or a faster processor.
The rest of the package is reasonably practical. A 120Hz display, 5G, stereo speakers, NFC, a headphone jack, 45W charging, reverse charging, and current software make the phone more than just a battery-focused device.
But the compromises should not be hidden. The HD+ resolution is low for a 6.9-inch panel, the cameras are basic, the Snapdragon 4 Gen 5 is not intended for high-end gaming, and the phone’s 232g weight makes its large battery impossible to ignore.
The Redmi M100 therefore makes the most sense when battery endurance is one of the buyer’s main priorities. It is less compelling for someone who wants a balanced phone with strong cameras, a sharper display, high-end gaming performance, or a lightweight design.
In the end, the M100 does not try to be everything. It makes a deliberate trade: more battery capacity and practical features in exchange for greater size and compromises in other areas.
For the right type of user, that trade can make sense. The important part is knowing exactly what you are choosing.
FAQ
How big is the Redmi M100 battery?
The Redmi M100 has a 7,900mAh battery.
Does the Redmi M100 support fast charging?
Yes. It supports 45W wired charging and up to 22.5W wired reverse charging.
Does the Redmi M100 support 5G?
Yes. The phone uses the Snapdragon 4 Gen 5 platform with 5G connectivity.
Does the Redmi M100 have a 120Hz display?
Yes. Its 6.9-inch LCD supports a refresh rate of up to 120Hz.
Is the Redmi M100 display Full HD+?
No. The display resolution is 720 × 1600 pixels, which is HD+.
How good is the Redmi M100 camera?
The phone has a 13MP rear camera and a 5MP front camera. They are designed for basic everyday photography rather than advanced mobile photography.
Does the Redmi M100 have a headphone jack?
Yes. It includes a 3.5mm headphone jack.
Does the Redmi M100 have NFC?
Yes. NFC is supported, although specific NFC services can vary depending on the market and software version.
How heavy is the Redmi M100?
The phone weighs approximately 232 grams and measures 8.8mm thick.
Is the Redmi M100 good for gaming?
It should handle casual and less demanding games, but the Snapdragon 4 Gen 5 is not intended for sustained high-end gaming.
What is the main reason to buy the Redmi M100?
Its main attraction is the combination of a 7,900mAh battery, large 6.9-inch display, and practical connectivity features. The phone is designed around endurance rather than cameras or high-end performance.
Where was the Redmi M100 launched?
The Redmi M100 launched in China, with the initial configurations priced from ¥1,799. International availability and pricing can differ.
