Redmi K40S

Redmi · 2022 22.07.2026

Redmi K40S — Redmi K40S (2022) is a budget phone from Redmi. MobileRank rating: 33/100. Performance 8/100, camera 31/100, battery 35/100.

Qualcomm Snapdragon 870 5G
4500 mAh
48 MP

Faster than 69% of smartphones in AnTuTu

Specifications
ProcessorQualcomm Snapdragon 870 5G
Display6.7" AMOLED, 1080x2400, 120Hz, 1300 nits (peak)
RAM6GB / 8GB / 12GB
Storage128GB / 256GB
Battery4500 mAh · ≈7.6 hrs of active use*
Charging67W
OSAndroid 12, MIUI 13
Dimensions163.2 × 76.0 × 7.7 mm
Weight195g
NFC yes

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

Cameras
Main48MP f/f/1.8
Ultrawide8MP
Front20MP
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 from the budget segment.
Performance
Overview and verdict

The Redmi K40S (2022) scores 33 out of 100 in the MobileRank rating, putting it in the "budget phone" category. The device is built around the Qualcomm Snapdragon 870 5G with a score of 1,010,069 in AnTuTu. Performance score: 8/100. The camera (48 MP) scores 31/100. The 4500 mAh battery with 67W fast charging scores 35/100 for battery life.

Pros
  • Fast charging at 67W
  • 6.7" AMOLED display at 120 Hz
Cons
  • Limited performance for demanding games
  • Modest camera capabilities
  • Small battery (4500 mAh)
  • No wireless charging
  • No telephoto camera
Best for: The Redmi K40S is a good fit for a wide range of users.
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 33 out of 100 in the MobileRank rating. Performance is 8/100, camera 31/100, battery 35/100.

What battery does the Redmi K40S have?

The Redmi K40S has a 4500 mAh battery with 67W charging. Battery score: 35/100.

Is the Redmi K40S worth buying?

The Redmi K40S is a good fit for a wide range of users. Overall rating — 33/100 (budget phone).

Redmi K40S
MobileRank rating
Device profile
Category scores
Performance 8
Display 100
Camera 31
Battery 35
Design 56
Value for money 55
Processor
Qualcomm Snapdragon 870 5G

See all smartphones with this processor