Home > Smartphone comparison > Redmi Note 15 4G vs Redmi Note 12 – which one to choose?

Xiaomi Redmi Note 15 4G vs Note 12

60 out of 100
Xiaomi Redmi Note 15 4G
VS
47 out of 100
Xiaomi Redmi Note 12
Xiaomi Redmi Note 15 4G
Xiaomi Redmi Note 12

Here we compared two mid-range smartphones: the 6.77-inch Xiaomi Redmi Note 15 4G (with MediaTek Helio G100 Ultra) that was released on December 18, 2025, against the Xiaomi Redmi Note 12, which is powered by Qualcomm Snapdragon 685 and came out 2 years and 9 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory
  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi Note 15 4G
  • Comes with 1000 mAh larger battery capacity: 6000 vs 5000 mAh
  • Delivers 53% higher peak brightness (1148 against 748 nits)
  • Newer Bluetooth version (v5.3)
  • Water-resistant body (IP64 classification)
  • 17% better performance in AnTuTu Benchmark (581K versus 496K)
  • The phone is 2 years and 9 months newer
  • Stereo speakers
  • Has 50% more RAM: 6GB versus 4GB
  • More recent OS version: Android 16 versus 15
Reasons to consider the Xiaomi Redmi Note 12
  • Includes a 3.5 mm headphone audio jack port

Review

Evaluation of Xiaomi Redmi Note 15 4G and Note 12 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview Score
πŸ“± Primary usage:

Value for money (Beta)

Should I update?
No 75% Yes
Yes, we think most users will notice the upgrade.
Updating from Xiaomi Redmi Note 12 to Xiaomi Redmi Note 15 4G makes sense and should feel noticeably better in daily use.
Main improvements: camera, battery life, and display.

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Redmi Note 15 4G
vs
Redmi Note 12

Display

Type AMOLED AMOLED
Size 6.77 inches 6.67 inches
Resolution 1080 x 2340 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 388 ppi 395 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (60-120 Hz)
Max rated brightness 800 nits 1200 nits
Max rated brightness in HDR 3200 nits -
HDR support Yes, HDR10 No
Touch sampling rate 240 Hz 240 Hz
Screen protection Tempered glass Corning Gorilla Glass 3
Screen-to-body ratio 89.5% 85.3%
Display features - DCI-P3 - DCI-P3
- Always-On Display
Display tests
RGB color space 99% 100%
PWM 119 Hz 484 Hz
Response time 1 ms 5 ms
Contrast ∞ Infinity ∞ Infinity
Peak brightness test (auto)
Redmi Note 15 4G +53%
1148 nits
Redmi Note 12
748 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 164.03 mm (6.46 inches) 165.66 mm (6.52 inches)
Width 75.42 mm (2.97 inches) 75.96 mm (2.99 inches)
Thickness 7.94 mm (0.31 inches) 7.85 mm (0.31 inches)
Weight 183.7 g (6.48 oz) 183.5 g (6.47 oz)
Waterproof IP64 IP53
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Blue, Green, Purple Gray, Blue, Green
Fingerprint scanner Yes, in-display Yes, in-button
Repairability Average (2.63/5) -
Drop resistance Excellent (A) Β· 270 drops -
Screen-to-body ratio

Performance

Chipset specifications of Xiaomi Redmi Note 15 4G and Xiaomi Redmi Note 12
SoC
Chipset MediaTek Helio G100 Ultra Qualcomm Snapdragon 685
Max clock 2200 MHz 2800 MHz
CPU cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.2 GHz: Cortex-A76		 - 4 cores at 1.9 GHz: Cortex-A53
- 4 cores at 2.8 GHz: Cortex-A73
Manufacturing TSMC TSMC
Lithography process 6 nanometers 6 nanometers
Neural processor (NPU) Yes Hexagon 686
GPU
Graphics Mali-G57 MP2 Adreno 610
GPU shading units 64 128
GPU clock 1000 MHz 1260 MHz
FLOPS ~128 GFLOPS ~322.6 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Redmi Note 15 4G and Xiaomi Redmi Note 12
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
Compute Score (GPU) 1325 381
Single-core score 697 469
Multi-core score 1705 1484
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
Redmi Note 15 4G +17%
581234
Redmi Note 12
496286
CPU 200727 187869
GPU 44524 29691
Memory 161347 141765
UX 174636 136961
Total score 581234 496286
Samples [5 tests] [20 tests]
PCMark 3.0
Web score - 8747
Video editing - 4745
Photo editing - 15136
Data manipulation - 7401
Writing score - 10107
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Redmi Note 15 4G
DateBenchmarkResult
πŸ“˜ 2026-06-14 (Javier)AnTuTu 11575630
πŸ“˜ 2026-05-31 (Aditya)AnTuTu 11581234
πŸ“˜ 2026-05-02 -> BogdanMUIYGeekbench 6 CPU697 / 1705
πŸ“˜ 2026-05-02 -> BogdanMUIYAnTuTu 11581234
πŸ“˜ 2026-05-02 (BogdanMUIY)AnTuTu 11581234
Add View all (6)
Xiaomi Redmi Note 12
DateBenchmarkResult
πŸ“˜ 2026-09-20 (SSAN)AnTuTu 11508133
πŸ“˜ 2026-07-24 (Tameng)AnTuTu 11501656
πŸ“˜ 2026-07-12 (blvll.)AnTuTu 11480276
πŸ“˜ 2026-07-05 (Ikan pari 🐟🦈)AnTuTu 11501460
πŸ“˜ 2026-07-02 (ZΙ™ka)Geekbench 6 GPU381
Add View all (31)

Memory

RAM
RAM size 6 GB 4 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 2133 MHz
Channels 2 2
Storage
Storage size 128 GB 64 GB
Storage type UFS 2.2 UFS 2.2
Memory card MicroSD MicroSD
Memory card max size Up to 2048 GB Up to 1024 GB

Software

Operating system Android 15 (Can be upgraded to Android 16) Android 13 (Can be upgraded to Android 15)
ROM HyperOS 3 HyperOS 2.0
OS size 45 GB 21 GB
OS updates 3 years 2 years
Security updates 6 years 2 years

Battery

Capacity 6000 mAh 5000 mAh
Max charge power 33 W 33 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging Yes No
Bypass charging No -
Fast charging Yes (50% in 40 min) Yes (55% in 30 min)
Full charging time 1:30 hr 1:11 hr
Battery cycles 1000 cycles -
Battery life tests
Web browsing - 08:20 hr
Watching video - 15:10 hr
Gaming - 05:33 hr
Standby - 113 hr
General battery life
Add your battery life

Main camera

Matrix 108 megapixels 50 megapixels
Image resolution - 8192 x 6144
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 60FPS Up to 30FPS
Slow motion - 120 FPS (720p)
Angle of widest lens - 120Β°
Lenses 1) Standard: 108 MP
2) Depth: 2 MP
1) Standard: 50 MP
2) Ultrawide: 8 MP
3) Macro: 2 MP
Camera features - Bokeh mode
- Pro mode		 - Bokeh mode
- Pro mode
Standard lens
Image resolution 108 MP 50 MP
Aperture f/1.7 f/1.8
Focal length 24 mm -
Sensor Samsung ISOCELL HM9 Samsung S5KJN1
Sensor size 1/1.67" (β‰ˆ 0.6 inch) 1/2.76" (β‰ˆ 0.36 inch)
Pixel size 0.64 micron 0.64 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Ultra-wide lens
Image resolution - 8 MP
Aperture - f/2.2
Sensor - Omnivision OV08D10
Sensor size - 1/4" (β‰ˆ 0.25 inch)
Pixel size - 1.12 micron
Stabilization - Digital
Macro lens
Image resolution - 2 MP
Aperture - f/2.4
Stabilization - Digital

Selfie camera

Megapixels 20 megapixels 13 megapixels
Image resolution - 4128 x 3096
Aperture f/2.2 f/2.5
Sensor Omnivision OV02F CMOS
Sensor size 1/5" (β‰ˆ 0.2 inch) 1/3.0" (β‰ˆ 0.33 inch)
Pixel size 1.75 micron 1.12 micron
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.3 5
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort No -
GPS GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Galileo
NFC* Depends on the region Depends on the region
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot Yes No
LTE Cat* - 13
5G support No No

Sound

Speakers Stereo Mono
Headphone audio jack No Yes
FM radio Yes Yes
Dolby Atmos Yes No
Speakers test
Max loudness
Redmi Note 15 4G +3%
84 dB
Redmi Note 12
81.3 dB

Other

Category Mid-range Mid-range
Announced December 2025 March 2023
Release date January 2026 March 2023
Launch price (MSRP) $199 $229
Successor - - Xiaomi Redmi Note 15 4G
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Not included Yes, 33 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Xiaomi Redmi Note 15 4G is definitely a better buy.

Cast your vote

So, which phone would you choose?
17 (47.2%)
19 (52.8%)
Total votes: 36

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