Redmi K40S

Name: Redmi K40S
Brand: Redmi

Redmi · 2022 27.07.2026 · updated 28.07.2026

Redmi K40S (2022) is a solid mid-ranger from Redmi. MobileRank rating: 54/100. Performance 61/100, camera 36/100, battery 42/100, display 79/100, portability 65/100.

Qualcomm Snapdragon 870 5G

4500 mAh

48 MP

Faster than 69% of smartphones in AnTuTu

Specifications

Processor	Qualcomm Snapdragon 870 5G
Display	6.7" AMOLED, 1080x2400, 120Hz, 1300 nits (peak)
RAM	6GB / 8GB / 12GB
Storage	128GB / 256GB
Battery	4500 mAh · ≈7.6 hrs of active use*
Charging	67W / No wireless charging
OS	Android 12, MIUI 13
Dimensions	163.2 × 76.0 × 7.7 mm
Weight	195g
NFC	yes

* battery life is an estimated figure based on capacity, display, and chipset — not a lab measurement.

Cameras

Main	48MP f/1.8
Ultrawide	8MP
Front	20MP

Benchmarks

AnTuTu 1010069

Geekbench Single 1298

Geekbench Multi 3520

Based on AnTuTu results, Redmi K40S is faster than 69% of smartphones in our database. This device is a solid mid-ranger.

Performance

Overview and verdict

The Redmi K40S (2022) scores 54 out of 100 in the MobileRank rating, putting it in the "solid mid-ranger" category. The device is built around the Qualcomm Snapdragon 870 5G with a score of 1,010,069 in AnTuTu. Performance score: 61/100. The camera (48 MP) scores 36/100. The 4500 mAh battery with 67W fast charging scores 42/100 for battery life.

Pros

Fast charging at 67W
6.7" AMOLED display at 120 Hz

Cons

Modest camera capabilities
No wireless charging
No telephoto camera

Best for: The Redmi K40S has no pronounced profile: its best category is display (79/100), its weakest camera (36/100).

Frequently asked questions

What processor does the Redmi K40S have?

The Redmi K40S runs on the Qualcomm Snapdragon 870 5G chipset. It scores 1,010,069 points in AnTuTu.

What is the Redmi K40S's rating?

The Redmi K40S scores 54 out of 100 in the MobileRank rating. Categories: performance 61/100, camera 36/100, battery 42/100, display 79/100, portability 65/100.

What battery does the Redmi K40S have?

The Redmi K40S has a 4500 mAh battery with 67W charging. Battery score: 42/100.

Is the Redmi K40S worth buying?

The Redmi K40S has no pronounced profile: its best category is display (79/100), its weakest camera (36/100). Overall rating — 54/100 (solid mid-ranger).

MobileRank rating

Device profile

Category scores

Performance 61

Display 79

Camera 36

Battery 42

Portability 65

Value for money —

The score is built from the five categories below (weights are in the methodology); 100% of the weight is known. Value for money is computed separately and is not part of the overall score. The price is unknown, so value for money is not computed. How the rating works →