Samsung Galaxy A51
How long will it last?
Official promiseSupported until December 2023 · Buy-by December 2021
Samsung promises 4 years of updates for this phone, so it's supported until December 2023 — buying it today still gets you about -2.5 years of safe use.
Source: Samsung's official policy · last verified 2026-06-12 · how we compute this
Our verdict
A hugely popular 2019 mid-ranger that pioneered the A5x screen, now fully retired and strictly a hand-me-down phone.
Pros
- Big 6.5-inch Super AMOLED display was a standout at its price
- Received three OS upgrades, taking it from Android 10 to Android 13
- Lightweight body with a headphone jack and microSD support
Cons
- Software support, including security patches, ended in early 2024
- Exynos 9611 was sluggish even when new and only has a 60Hz screen
Full specifications
Display
💡 Bigger numbers = smoother scrolling (Hz) and easier outdoor reading (nits).
| Screen | 6.5-inch Super AMOLED, 1080x2400 (FHD+), 60Hz |
Performance
💡 The phone's brain — it decides speed today and how well it ages.
| Chipset | Exynos 9611 |
| RAM | 4GB / 6GB |
| Storage | 64GB / 128GB |
Cameras
💡 Megapixels aren't everything — lens variety matters more day-to-day.
| main | 48MP |
| ultra-wide | 12MP |
| macro | 5MP |
| front | 32MP |
Battery & charging
💡 Capacity in mAh — bigger usually means longer between charges.
| Battery | 4,000 mAh |
| Charging | 15W wired |
Build
💡 Size, weight, and the materials between your phone and the floor.
| Dimensions | 158.5 × 73.6 × 7.9 mm |
| Weight | 172 g |
| Materials | Gorilla Glass 3 front, 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 2.0 at launch |
| Connectivity | 4G LTE, Wi-Fi 5, Bluetooth 5.0, NFC, USB-C, 3.5mm jack |
| Update policy | 3 OS upgrades · 4 years of security updates (official promise) |
Better-value alternatives
Similar price, lower cost per month of safe ownership.
Frequently asked questions
How long will the Galaxy A51 get updates?
It no longer gets any. Samsung ended software support in early 2024 after delivering three OS upgrades (to Android 13) and roughly four years of security patches.
Is the Galaxy A51 worth buying in 2026?
Only as a very cheap used or backup device. With no security patches and dated performance, it's not suitable as a daily driver for important accounts.
Does the Galaxy A51 have a headphone jack?
Yes, it includes a 3.5mm headphone jack as well as a microSD card slot for expandable storage.
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.