Samsung Galaxy M31
How long will it last?
Our estimateSupported until February 2023 · Buy-by February 2021
Apple doesn't publish an end date, but iPhones have a consistent ~3-year update track record — on that basis the Galaxy M31 should be supported until around February 2023. Buying it today still gets you about -3.3 years of safe use (Apple's written legal minimum is 5 years).
Source: Samsung's official policy · last verified 2026-06-12 · how we compute this
Our verdict
The 2020 big-battery favorite that defined the M-series formula — but its update window is long gone.
Pros
- 6000mAh battery delivered standout endurance in 2020
- Bright FHD+ AMOLED and a 64MP quad camera
- 32MP selfie camera was generous for its price
Cons
- No longer receives any OS or security updates
- Slow 15W charging and only a 60Hz display
Full specifications
Display
💡 Bigger numbers = smoother scrolling (Hz) and easier outdoor reading (nits).
| Screen | 6.4-inch Super AMOLED, 1080x2340 (FHD+), 60Hz |
Performance
💡 The phone's brain — it decides speed today and how well it ages.
| Chipset | Samsung Exynos 9611 |
| RAM | 6GB / 8GB |
| Storage | 64GB / 128GB |
Cameras
💡 Megapixels aren't everything — lens variety matters more day-to-day.
| main | 64MP |
| ultra-wide | 8MP |
| macro | 5MP |
| front | 32MP |
Battery & charging
💡 Capacity in mAh — bigger usually means longer between charges.
| Battery | 6,000 mAh |
| Charging | 15W wired |
Build
💡 Size, weight, and the materials between your phone and the floor.
| Dimensions | 159.2 × 75.1 × 8.9 mm |
| Weight | 191 g |
| Materials | Glass front (Gorilla Glass 3), plastic frame, plastic back |
| Water resistance | None |
Software & connectivity
💡 The software it ships with, and how far it can upgrade.
| Software | Android 10 with One UI 2 at launch |
| Connectivity | 4G LTE, Wi-Fi 5, Bluetooth 5.0, NFC, USB-C, GPS |
| Update policy | ~2 years of updates (our estimate from Samsung's track record — written minimum is 5 years) |
Better-value alternatives
Similar price, lower cost per month of safe ownership.
Frequently asked questions
How long will the Galaxy M31 get updates?
It received two OS upgrades (Android 11 and Android 12) and around three years of security from its early-2020 launch, so it no longer gets updates.
What is the Galaxy M31 best known for?
Its 6000mAh battery and AMOLED screen, which made it one of the most popular budget battery phones in India when it launched.
Does the Galaxy M31 charge quickly?
No, it tops out at 15W, so filling its large 6000mAh battery takes a couple of hours.
Compare it
Specs are collected from manufacturer documentation; prices reflect major US retailers and change often. Support end dates follow each brand's official policy (or, for Apple, its documented historical pattern). Last verified 2026-06-12.