Xiaomi Redmi Note 9
How long will it last?
Our estimateSupported until May 2023 · Buy-by May 2021
Apple doesn't publish an end date, but iPhones have a consistent ~3-year update track record — on that basis the Redmi Note 9 should be supported until around May 2023. Buying it today still gets you about -3.1 years of safe use (Apple's written legal minimum is 5 years).
Source: Xiaomi's official policy · last verified 2026-06-13 · how we compute this
Our verdict
A big-battery budget phone that prioritized endurance over speed and has now reached the end of its support life.
Pros
- Large 5020mAh battery delivers excellent stamina
- Helio G85 handles everyday apps smoothly
- Keeps a headphone jack and microSD expansion
Cons
- Software support has ended
- 60Hz LCD and 18W charging feel dated
Full specifications
Display
💡 Bigger numbers = smoother scrolling (Hz) and easier outdoor reading (nits).
| Screen | 6.53-inch IPS LCD, 2340x1080 (FHD+), 60Hz |
Performance
💡 The phone's brain — it decides speed today and how well it ages.
| Chipset | MediaTek Helio G85 |
| RAM | 3GB / 4GB / 6GB |
| Storage | 64GB / 128GB |
Cameras
💡 Megapixels aren't everything — lens variety matters more day-to-day.
| main | 48MP |
| ultra-wide | 8MP |
| front | 13MP |
Battery & charging
💡 Capacity in mAh — bigger usually means longer between charges.
| Battery | 5,020 mAh |
| Charging | 18W wired (22.5W charger in box) |
Build
💡 Size, weight, and the materials between your phone and the floor.
| Dimensions | 162.3 × 77.2 × 8.9 mm |
| Weight | 199 g |
| Materials | Gorilla Glass 5 front, plastic back and frame |
| Water resistance | splash-resistant (P2i nano coating, no IP rating) |
Software & connectivity
💡 The software it ships with, and how far it can upgrade.
| Software | Android 10 with MIUI 11 at launch |
| Connectivity | 4G LTE, Wi-Fi 5, Bluetooth 5.0, USB-C, 3.5mm jack, NFC, IR blaster |
| Update policy | ~2 years of updates (our estimate from Xiaomi'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 does the Redmi Note 9 battery last?
Its 5020mAh cell easily lasts a full day and often into a second day with light use, one of the phone's main strengths.
Is the Redmi Note 9 still supported?
No. As a 2020 budget device it has exhausted its roughly two OS and three security update years.
What charger does it include?
It supports 18W charging but ships with a 22.5W adapter in the box in many regions.
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 2026-06-13.