The Samsung Galaxy M31s is a 4G LTE smartphone that was one of Samsung’s most sought-after mid-range choices for 2020. It features a bright Super AMOLED screen, a huge 6,000mAh battery, a dual rear shooter and a quad-camera package with 64MP sensors, and the Exynos 9611 processor. Now discontinued, it has still proven to be a great value for those who want a solid smartphone for everyday use, for taking photos, for entertainment and for battery life. So, in this in-depth Samsung Galaxy M31s review, you’ll find out all you need to know about the Samsung Galaxy M31s, including its design, performance, cameras, battery, software, and overall user experience.
Samsung Company Overview

Samsung Electronics is a major world manufacturer of smart phones, which it makes in high-end, mid-range and budget lines. The Galaxy M Series is tailored for consumers seeking high-performance displays, robust build quality, and impressive battery efficiency without the premium price tag.
The Galaxy M31s is one of Samsung’s top-selling smartphones due to its high-end specs – such as 4K video shooting and 6,000mAh battery – that are priced competitively.
| Feature | Details |
| Brand | Samsung |
| Series | Galaxy M Series |
| Launch Year | 2020 |
| Target Segment | Mid-range Smartphone |
| Operating System | Android with One UI |
Samsung Galaxy M31s Launch Date, Price, Design & Display
The Samsung Galaxy M31s was officially announced on 30th July 2020 and released from 6th August 2020. The starting price in India was about ₹19,499, while in European markets it retailed for approximately €300.
It has a high-quality polycarbonate chassis, with a body size of 159.3mm x 74.4mm x 9.3mm and a weight of 203g. Available in Mirage Black & Mirage Blue colors.
The Galaxy M31s has a 6.5″ Full HD+ Super AMOLED Infinity-O display with 1080×2400 resolution on the front panel. Protected by Corning Gorilla Glass 3, the display delivers vibrant colors, deep blacks, and excellent viewing angles, making it ideal for streaming videos, gaming, and everyday use.
| Specification | Details |
| Launch Date | 6 August 2020 |
| Status | Discontinued |
| Launch Price | ₹19,499 (Approx.) |
| Display | 6.5-inch Super AMOLED |
| Resolution | 1080 × 2400 Pixels |
| Protection | Corning Gorilla Glass 3 |
| Colors | Mirage Black, Mirage Blue |
Samsung Galaxy M31s Processor, Performance, RAM & Storage

Samsung Galaxy M31s runs on Samsung’s Exynos 9611 processor, which was designed using the 10nm process. It comes with an octa-core processor, Mali-G72 MP3 GPU and delivers solid performance for normal use, multimedia and casual gaming.
The smartphone is available in two specifications of 6GB and 8GB of RAM, both having 128GB of UFS 2.1 storage, which means it is capable of loading apps quickly and allowing for greater multitasking. Users who like to store large files of photos, videos and apps can easily expand memory with a dedicated microSD slot.
| Feature | Details |
| Processor | Exynos 9611 |
| GPU | Mali-G72 MP3 |
| RAM | 6GB / 8GB |
| Storage | 128GB |
| Storage Type | UFS 2.1 |
| Expandable Storage | Yes, Dedicated microSDXC |
Samsung Galaxy M31s Camera Performance Review
One of the greatest assets of the Galaxy M31s is photography. The primary camera is 64MP which takes detailed and colourful pictures during the day. It comes with a 12MP ultra-wide camera, a 5MP macro camera and a depth sensor for portrait photos.
The rear camera has 4K video recording capability up to 30fps with Gyro EIS for smoother videos. The front has a 32MP selfie camera that can capture 4K video, which is ideal for taking selfies, making videos, and creating content.
| Camera | Details |
| Main Camera | 64MP Wide |
| Ultra-wide Camera | 12MP |
| Macro Camera | 5MP |
| Depth Sensor | Yes |
| Selfie Camera | 32MP |
| Video Recording | 4K@30fps |
Samsung Galaxy M31s Battery Life Review
Samsung Galaxy M31s features a huge 6,000mAh battery and offers terrific battery life which can hold up with moderate utilization for two days or more. It supports 25W fast charging, which can quickly replenish battery power, and also has 4.5W reverse wired charging, which can be used to charge accessories compatible with it.
The device is preloaded with Android 10 and will be updated to Android 12 with One UI 4.1, providing a fresh interface, improved privacy and helpful productivity tools.
Connectivity options include 4G LTE, Wi-Fi ac, Bluetooth 5.0, USB Type-C, GPS, FM radio and NFC (in some areas). A fingerprint scanner is on the side for security purposes.
| Feature | Details |
| Battery | 6000mAh |
| Fast Charging | 25W |
| Reverse Charging | 4.5W Wired |
| Operating System | Android 10 (Upgradable to Android 12) |
| UI | One UI 4.1 |
| Fingerprint Sensor | Side-mounted |
Samsung Galaxy M31s Gaming, Audio & Security Features
The Galaxy M31s offers a good gaming experience for casual and moderate gamers. The most common games such as BGMI, Call of Duty: Mobile, Free Fire or Asphalt 9 play perfectly at medium graphics mode.
For an enjoyable multimedia experience, the phone features a 3.5mm headphone jack, a loud speaker and Dolby Atmos support with compatible headphones.
Samsung has implemented a side-mounted fingerprint sensor, Face Unlock, Secure Folder, Knox Security and periodic software security updates as is common practice in the security department.
| Feature | Details |
| Gaming Performance | Good for Casual Gaming |
| Audio | Loudspeaker + 3.5mm Jack |
| Security | Samsung Knox |
| Fingerprint | Side-mounted |
| Face Unlock | Supported |
Competitiors
| Smartphone | Processor | Display | Battery | Main Camera | Launch Price (India) |
| Samsung Galaxy M31s | Exynos 9611 | 6.5-inch Super AMOLED, FHD+ | 6000mAh, 25W | 64MP + 12MP + 5MP + Depth | ₹19,499 |
| Xiaomi Redmi Note 9 Pro Max | Snapdragon 720G | 6.67-inch IPS LCD, FHD+ | 5020mAh, 33W | 64MP Quad Camera | ₹16,499 |
| Realme 7 Pro | Snapdragon 720G | 6.4-inch Super AMOLED, FHD+ | 4500mAh, 65W | 64MP Quad Camera | ₹19,999 |
| POCO X3 | Snapdragon 732G | 6.67-inch IPS LCD, 120Hz | 6000mAh, 33W | 64MP Quad Camera | ₹16,999 |
| Motorola Moto G9 Plus | Snapdragon 730G | 6.81-inch IPS LCD, FHD+ | 5000mAh, 30W | 64MP Quad Camera | ₹20,999 |
Conclusion
The Samsung Galaxy M31s is certainly one of Samsung’s top mid-range smartphones from 2020. It retains a 6.5-inch Super AMOLED display, 6000mAh battery, 64MP quad-camera and 32MP selfie camera which continue to make it a reliable choice for media lovers, photographers and battery fans. But despite the absence of 5G connectivity and a high refresh rate screen, the phone handles the day-to-day duties, casual gaming, and content viewing well. In case you’re thinking about purchasing a refurbished or used device, the Galaxy M31s will still provide you with a superb value because of Samsung’s software expertise and sturdy build.
FAQs
It was launched in India at an approximate price of ₹19,499 whereas its price in the global market is around €300.
No, it is 4G LTE only.
Yes, it’s capable of handling casual and moderate gaming smoothly with the Exynos 9611 processor and Mali-G72 MP3 GPU.
Yes, it has a special microSD slot for storage expansion.
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