Redmi K40S

Name: Redmi K40S
Brand: Redmi

Display6.67"

Chipset8 GB, 12 GB RAM, Qualcomm Snapdragon 870 SM8250

Battery4500 mAh

6.4GoSolo score

More Redmi

Network

4G bands

FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 700TDD LTE: 3500, 2600, 2500, 2300, 2100, 1900

5G bands

FDD 5G: 2100, 1800, 700TDD 5G: 3700, 3500, 2500

Launch

Announced

1Q 2022

Status

Available

Body

Dimensions

163.20 x 75.95 x 7.70 mm

Weight

195.00 g

Durability

IP53

Display

Type

Color / AMOLED16,7 millions colors1080 x 2400 px (6.67") 395 ppi∼86.7% screen-to-body ratio

Size

6.67 inches

Resolution

1080 x 2400 pixels

Protection

Corning Gorilla Glass 5

Platform

Android12, MIUI 13

Chipset

Qualcomm Snapdragon 870 SM8250Processor clock: 3.20 GHzNumber of cores: 8GPU: Adreno 650

CPU

3.20 GHz, 8 cores

GPU

Adreno 650

Memory

Internal

128 GB, 256 GB RAM: 6 GB, 8 GB, 12 GB

Battery

Type

Li-Po 4500 mAh

Charging

Quick Charge 3+

Misc

Models

Xiaomi Redmi K40S

GoSolo Read / what it means5 takeaways

performance

Snapdragon 870, Adreno 650 GPUHandles mid-tier games (PUBG, Honkai Impact at high settings) and everyday apps without lag, though sustained heavy gaming will throttle after 10-15 minutes.

display

6.67", 1080p AMOLED, 395 ppiSharp enough for reading text at arm's length, and AMOLED blacks are deep, but the 1080p resolution shows visible pixels in close-up photo viewing compared to 1440p phones.

battery

4500 mAh, about 5 to 6 hours screen timeA full day is tight if you stream video or game; most users will need to charge by evening with moderate use.

charging

Quick Charge 3+, roughly 1 to 1.5 hours to fullFaster than standard 5W, but slower than 65W wired chargers now common in this price range; a mid-morning top-up buys you a few more hours.

durability

IP53, Gorilla Glass 5Resists splashes and light dust, but not full submersion; glass back will crack on a hard drop, and the thin 7.7mm frame is easy to bend.