Xiaomi Redmi Note 9S

Xiaomi Redmi Note 9S
1080 x 2400
(20:9 ratio)

4GB to 6GB RAM

64GB to 128GB

Qualcomm SM7125 Snapdragon 720G

5020 mAh
18.57 Wh

 ~112 h
 ~24 h
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Xiaomi Redmi Note 9S was released in 2020 and is powered by the Qualcomm SM7125 Snapdragon 720G chipset manufactured on a 8 nm process technology. It comes with 4GB to 6GB of RAM and 64GB to 128GB of storage. The battery capacity is 5020 mAh and the phone is 8.8 mm thick.

Xiaomi Redmi Note 9S Battery life

Xiaomi Redmi Note 9S battery life can vary significantly, ranging from 12 hours and 5 minutes to 112 hours, depending on how the phone is used. The following usage profiles are relevant:

1.  Active Standby: ~112 hours

4 days and 16 hours? Really? This profile prioritizes a phone that's always reliable, perfect for emergencies or extended trips. Keep in mind, standby time will take a significant hit when you actually use the phone. Active standby time of the Xiaomi Redmi Note 9S depends on using it wisely and avoiding battery-draining background apps.

2.  Light Usage Profile: ~51 hours

If you primarily use your phone for communication but have all the apps you need and use them whenever you need them, you can expect the Xiaomi Redmi Note 9S to last for approximately 51 hours. That means 2 days and 3 hours.

3.  Moderate Usage Profile: ~39 hours

If you're a fan of YouTube and social media but don't have all day for it, this profile is for you. In this scenario, you can expect the phone to last for approximately 39 hours. That means 1 day and 15 hours.

4.  Heavy Usage Profile: ~25 hours

If you have high communication needs and staying informed is crucial for you, you will likely use your phone heavily. In this scenario, you can expect a battery life of approximately 25 hours. That means 1 day and 1 hours.

Within this category, there are three extreme subprofiles:

  • Continuous voice calls: ~24 hours.
  • Continuous video playback: ~16 hours and 29 minutes.
  • Continuous intense web activity: ~12 hours and 5 minutes.

It is important to note that these are just estimates, and actual battery life may vary depending on individual usage patterns and specific conditions.

Factors such as battery age, screen brightness, network signal strength, and background app activity can also impact battery life of Xiaomi Redmi Note 9S phone.

Basic specifications

General specifications
Release year 2020
Networks technology GSM / HSPA / LTE (2G+3G+4G)
Size (mm) 165.8 x 76.7 x 8.8 mm
Size (in) 6.53 x 3.02 x 0.35 in
Weight 209 g
Software Android 10, upgradable to Android 12, MIUI 14
Screen size 6.67 inches
Screen resolution 1080 x 2400 pixels (20:9 ratio)
Screen Type IPS LCD
Chipset Qualcomm SM7125 Snapdragon 720G
Architecture Octa-core (2×2.3 GHz Kryo 465 Gold + 6×1.8 GHz Kryo 465 Silver)
GPU Adreno 618
Technology 8 nm process
Storage 64GB to 128GB
RAM 4GB to 6GB
Memory versions
  • 64GB storage, 4GB RAM
  • 64GB storage, 6GB RAM
  • 128GB storage, 4GB RAM
  • 128GB storage, 6GB RAM
Card microSDXC – Dedicated slot
Multimedia & Connectivity
Main Camera Quad (48MP + 8MP + 5MP + 2MP)
Front Camera Single (16 MP)
Radio FM radio, recording
USB USB Type-C 2.0, OTG
Jack 3.5mm Yes
Battery Type Non-removable Li-Po
Battery Capacity 5020 mAh
Battery Energy 18.57 Wh
Phone Power density 24.02 mAh/g weight
570.45 mAh/mm thickness
Charging 18W wired
Battery Life Stand-by time: ~112 h
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