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

Xiaomi Redmi 15 4G vs Redmi 12

58 out of 100
Xiaomi Redmi 15 4G
VS
41 out of 100
Xiaomi Redmi 12
Xiaomi Redmi 15 4G
Xiaomi Redmi 12

Here we compared two budget smartphones: the 6.9-inch Xiaomi Redmi 15 4G (with Qualcomm Snapdragon 685) that was released on August 1, 2025, against the Xiaomi Redmi 12, which is powered by MediaTek Helio G88 and came out 2 years and 2 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 15 4G
  • Comes with 2000 mAh larger battery capacity: 7000 vs 5000 mAh
  • Higher display refresh rate – 144 Hz
  • 36% better performance in AnTuTu Benchmark (504K versus 370K)
  • Water-resistant body (IP64 classification)
  • More energy-efficient CPU – Snapdragon 685
  • Has 2x more RAM: 4GB versus 2GB
  • Delivers 15% higher peak brightness (619 against 536 nits)
  • The phone is 2 years and 2 months newer
  • Supports higher wattage charging (33W versus 18W)
Reasons to consider the Xiaomi Redmi 12
  • Newer Bluetooth version (v5.3)
  • Includes a 3.5 mm headphone audio jack port

Review

Evaluation of Xiaomi Redmi 15 4G and Redmi 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
📱 Primary usage:

Value for money (Beta)

Should I update?
No 83% Yes
Yes, this is a clear and meaningful upgrade.
Updating from Xiaomi Redmi 12 to Xiaomi Redmi 15 4G is a clear step forward, and the improvements should be easy to notice.
Main improvements: battery life, camera, and display.

Tests and specifications

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

Display

Type IPS LCD IPS LCD
Size 6.9 inches 6.79 inches
Resolution 1080 x 2340 pixels 1080 x 2460 pixels
Aspect ratio 19.5:9 19.5:9
PPI 374 ppi 396 ppi
Refresh rate 144 Hz 90 Hz
Adaptive refresh rate Yes No
Max rated brightness 650 nits 550 nits
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 85.6% 88%
Display tests
RGB color space 99.8% 96.3%
PWM Not detected Not detected
Response time 30 ms 26 ms
Contrast 1426:1 898:1
Peak brightness test (auto)
Redmi 15 4G +15%
619 nits
Redmi 12
536 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 169.48 mm (6.67 inches) 168.6 mm (6.64 inches)
Width 80.45 mm (3.17 inches) 76.28 mm (3 inches)
Thickness 8.4 mm (0.33 inches) 8.17 mm (0.32 inches)
Weight 214 g (7.55 oz) 198.5 g (7 oz)
Waterproof IP64 IP53
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Gray, Purple Black, Silver, Blue
Fingerprint scanner Yes, in-button Yes, in-button
Repairability Average (2.63/5) -
Drop resistance Excellent (A) · 270 drops -
Screen-to-body ratio
Redmi 15 4G
85.6%
Redmi 12 +3%
88%

Performance

Chipset specifications of Xiaomi Redmi 15 4G and Xiaomi Redmi 12
SoC
Chipset Qualcomm Snapdragon 685 MediaTek Helio G88
Max clock 2800 MHz 2000 MHz
CPU cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4 cores at 1.9 GHz: Cortex-A53
- 4 cores at 2.8 GHz: Cortex-A73		 - 6 cores at 1.8 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
Manufacturing TSMC TSMC
Lithography process 6 nanometers 12 nanometers
Neural processor (NPU) Hexagon 686 MediaTek APU
GPU
Graphics Adreno 610 Mali-G52 MC2
GPU shading units 128 48
GPU clock 1260 MHz 1000 MHz
FLOPS ~322.6 GFLOPS ~96 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Redmi 15 4G and Xiaomi Redmi 12
Geekbench 6 (Single-Core)
Redmi 15 4G +7%
466
Redmi 12
434
Geekbench 6 (Multi-Core)
Redmi 15 4G +25%
1529
Redmi 12
1223
Compute Score (GPU)
Compute Score (GPU) 376 -
Single-core score 466 434
Multi-core score 1529 1223
Sources: Geekbench [3]
AnTuTu Benchmark 11
Redmi 15 4G +36%
504376
Redmi 12
370165
CPU 191284 142919
GPU 28459 26174
Memory 154573 90544
UX 130060 110528
Total score 504376 370165
Samples [8 tests] [5 tests]
3DMark Steel Nomad Light
Stability - 95%
Graphics test - 1 FPS
Graphics score - 81
Sources: 3DMark [5], [6]
PCMark 3.0
Redmi 15 4G +3%
9376
Redmi 12
9121
Web score 11100 8703
Video editing 4691 6840
Photo editing 15112 18638
Data manipulation 7440 6312
Writing score 11632 8610
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Redmi 15 4G
DateBenchmarkResult
📘 2026-09-27 (Ary)AnTuTu 12557806
📘 2026-09-26 (Aryy)AnTuTu 12557806
📘 2026-07-26 (Aj Umagat)AnTuTu 11525916
📘 2026-07-19 (Veliki_eblan)AnTuTu 11503739
📘 2026-07-08 (Ary)Geekbench 6 CPU463 / 1485
Add View all (15)
Xiaomi Redmi 12
DateBenchmarkResult
📘 2026-09-27 (R12 User)AnTuTu 12445418
📘 2026-06-17 (StalinxQQ)AnTuTu 11375099
📘 2026-06-02 (Mpanpis)AnTuTu 11373290
📘 2026-05-29 (Sanul)AnTuTu 11370165
📘 2026-01-23 (vitya228)AnTuTu 11353817
Add View all (6)

Memory

RAM
RAM size 4 GB 2 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 1800 MHz
Channels 2 2
Storage
Storage size 128 GB 128 GB
Storage type UFS 2.2 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max size Up to 2048 GB Up to 1024 GB

Software

Operating system Android 15 Android 13 (Can be upgraded to Android 15)
ROM HyperOS 2.0 HyperOS 2.0
OS size 26 GB 18 GB
OS updates 5 years 2 years
Security updates - 2 years

Battery

Capacity 7000 mAh 5000 mAh
Max charge power 33 W 18 W
Battery type Silicon-Carbon (Si/C) Li-Po
Replaceable No No
Wireless charging No No
Reverse charging Yes No
Bypass charging No -
Fast charging Yes (50% in 40 min) Yes (29% in 30 min)
Full charging time 1:46 hr 2:07 hr
Battery cycles 1000 cycles -
Battery life tests
Web browsing - 07:58 hr
Watching video - 12:45 hr
Gaming - 04:59 hr
Standby - 118 hr
General battery life
Redmi 15 4G
n/a
Redmi 12
22:09 hr
Add your battery life

Main camera

Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8150 x 6150
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 30FPS Up to 30FPS
Slow motion - 120 FPS (720p)
Angle of widest lens - 120°
Lenses 1) Standard: 50 MP
2) Depth
1) Standard: 50 MP
2) Ultrawide: 8 MP
3) Depth: 2 MP
Camera features - Bokeh mode - Bokeh mode
Standard lens
Image resolution 50 MP 50 MP
Aperture f/1.8 f/1.8
Sensor - Samsung S5KJN1
Sensor size - 1/2.76" (≈ 0.36 inch)
Pixel size - 0.64 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Ultra-wide lens
Image resolution - 8 MP
Aperture - f/2.2
Sensor - Sony IMX355
Sensor size - 1/2.8" (≈ 0.36 inch)
Pixel size - 1.14 micron
Stabilization - Digital

Selfie camera

Megapixels 8 megapixels 8 megapixels
Image resolution - 3264 x 2448
Aperture f/2.0 f/2.1
Sensor CMOS -
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 5.3
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
DisplayPort No -
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes 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 No Yes
LTE Cat* - 7
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack No Yes
FM radio No Yes
Dolby Atmos Yes No
Speakers test
Max loudness
Redmi 15 4G +6%
84.2 dB
Redmi 12
79.4 dB

Other

Category Budget Budget
Announced August 2025 June 2023
Release date August 2025 June 2023
Launch price (MSRP) $150 $159
Successor - - Xiaomi Redmi 15 4G
Sensors - Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Accelerometer
- Compass
- Fingerprint
Bundled charger Not included Not included
*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 15 4G is definitely a better buy.

Cast your vote

So, which phone would you choose?
10 (83.3%)
2 (16.7%)
Total votes: 12

Related comparisons

1. Xiaomi Redmi 12 vs Xiaomi Redmi Note 12
2. Xiaomi Redmi 12 vs Xiaomi Redmi 13C (12)
3. Xiaomi Redmi 12 vs Samsung Galaxy A15 5G
4. Xiaomi Redmi 12 vs Xiaomi Redmi 13 4G (2)
5. Xiaomi Redmi 12 vs Xiaomi Redmi 12C
6. Xiaomi Redmi 15 4G vs Xiaomi Redmi 15 5G
7. Xiaomi Redmi 15 4G vs Xiaomi Poco M7 Plus
8. Xiaomi Redmi 15 4G vs Xiaomi Redmi 15C 4G
9. Xiaomi Redmi 15 4G vs Xiaomi Poco M7 Pro 5G
10. Xiaomi Redmi 15 4G vs Xiaomi Redmi 13 4G
Compare other phones (860+)

User opinions

You can share your opinion or ask a question in the comments below
🌐 Register your profile and become part of NanoReview community!
EnglishРусский