Home Phone comparison Xiaomi Redmi 8 and Xiaomi Redmi 15 4G - Which is better?

Xiaomi Redmi 8 vs Xiaomi Redmi 15 4G

38 out 100
Xiaomi Redmi 8
VS
60 out 100
Xiaomi Redmi 15 4G
Xiaomi Redmi 8
Xiaomi Redmi 15 4G

Compared 2 smartphones : Xiaomi Redmi 8 Manufactured in October, 2019, with display 6.22 with chipsetQualcomm Snapdragon 439, vs Xiaomi Redmi 15 4G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 685. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi 8
  • Lighter design: 188g vs 224g
Reasons to choose Xiaomi Redmi 15 4G
  • Larger display: 6.9in
  • Higher pixel density: 374ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5000mAh
  • Newer Bluetooth version: 5 vs 4.2
  • Includes charger

Versions

Available versions and configurations
Memory Options - 3/32 GB
- 4/64 GB		 - 6/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Redmi 8 and Xiaomi Redmi 15 4G
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Redmi 8
vs
Xiaomi Redmi 15 4G

Display

Display quality comparison
Type IPS LCD IPS LCD
Size 6.22 in 6.9 in
Resolution 720x1520 pixels 1080x2340 pixels
Aspect ratio 19:9 19.5:9
Pixel density 270 ppi 374 ppi
Refresh rate 60 Hz 144 Hz
Adaptive refresh rate No Yes
Max brightness 400 nits n/a
HDR support No No
Screen-to-body ratio 81.8 % 83.1 %
Display test
Peak brightness (auto)
Xiaomi Redmi 8
512 nits
Xiaomi Redmi 15 4G
n/a
sRGB gamut95.7 %n/a
Response time55.2 msn/a
Contrast2308:1n/a
Sources: NotebookCheck [Xiaomi Redmi 8]

Design & Build

Design and ergonomics comparison
Height 156.5 mm (6.16 in) 171.1 mm (6.74 in)
Width 75.4 mm (2.97 in) 82.1 mm (3.23 in)
Thickness 9.4 mm (0.37 in) 8.6 mm (0.34 in)
Weight 188 g (6.63 oz) 224 g (7.9 oz)
Water resistance Yes IP64
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Blue
- Red		 - Black
- Gray
- Purple
Fingerprint sensor Yes rear Yes, In-Button
Screen-to-body ratio
Xiaomi Redmi 8
81.8 %
Xiaomi Redmi 15 4G
83.1 %

Performance

Testing Xiaomi Redmi 8 and Xiaomi Redmi 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 439 Qualcomm Snapdragon 685
Max Frequency 2000 MHz 2800 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.45 (Cortex-A53)
- 4/2 (Cortex-A53)		 - 4/1.9 (Cortex-A53)
- 4/2.8 (Cortex-A73)
Process Samsung TSMC
Transistor Size 12 nm 6 nm
Neural Processor Hexagon 536 Hexagon 686
Graphics Adreno 505 Adreno 610
GPU Cores 48 128
GPU Frequency 450 MHz 1260 MHz
FLOPS 43.2 GFLOPS 322.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi 8
476
Xiaomi Redmi 15 4G
475
Geekbench 6 (Multi-Core)
Xiaomi Redmi 8
1521
Xiaomi Redmi 15 4G
1514
Geekbench 6 (Single-Core)476475
Geekbench 6 (Multi-Core)15211514
AnTuTu 10
AnTuTu 10
Xiaomi Redmi 8
151070
Xiaomi Redmi 15 4G
380990
CPU55305114885
GPU1530657988
Memory50584103236
UX29875104881
NanoReview Score151070380990

Memory

RAM
RAM Size - 3 GB
- 4 GB		 6 GB
Memory Type LPDDR3 LPDDR4X
Memory Frequency 933 MHz 2133 MHz
Channels 1 2
Storage
Storage Capacity- 32 GB
- 64 GB		128 GB
Storage TypeeMMC 5.1UFS 2.2
Memory CardMicroSDMicroSD

Software

OS Android 9.0 (Upgradeable to Android 10) Android 15
OS Size 15 GB n/a
UI Skin MIUI 12.5 HyperOS 2.0

Battery

Volume 5000 mAh 7000 mAh
Max Charging Power 18 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes Quick Charge 3.0 (50% in 85 min) Yes
Full Charge Time 3:20 h n/a
Battery Life Test
Battery Life
Xiaomi Redmi 8
20:29
Xiaomi Redmi 15 4G
n/a
Web Browsing08:09 hn/a
Video Playback10:10 hn/a
Games04:49 hn/a
Standby Mode110 hn/a

Main camera

Matrix 12 MP 50 MP
Photo resolution 4000x3000 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) n/a
Wide-angle lens 113 ° n/a
Lenses count Standard: 12 MP
Depth: 2 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 Bokeh effect
Main lens
Matrix12 MP50 MP
Aperturef/1.8f/1.8
SensorSony IMX363n/a
Sensor size1/2.55n/a
Pixel size1.4 μmn/a
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationDigitalDigital

Front camera

Matrix 8 MP 8 MP
Photo resolution 3648x2190 pixels n/a
Aperture f/2.0 f/2.0
Sensor CMOS n/a
Sensor size 1/4.0 n/a
Pixel size 1.12 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 4 (802.11 a/b/g/n) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 4.2 5
Bluetooth features LE, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- USB-Host mode
- OTG		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* No Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2n/a
3G BandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100n/a
LTE Bands*LTE (B1/B2/B3/B4(1700/B5/B7/B8/B20/B38/B40/B2100))n/a
LTE category4n/a
5G SupportNoNo

Sound

Speakers Mono n/a
3.5 mm Jack Yes Yes
FM Radio Yes No
Dolby Atmos No n/a
Speaker Test
Max Volume
Xiaomi Redmi 8
88.6 dB
Xiaomi Redmi 15 4G
n/a

Other

Class Budget Budget
Announced October, 2019 yr August, 2025 yr
Release Date October, 2019 yr August, 2025 yr
Launch Price ($) 140 n/a
MSRP ($) n/a 150
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi 15 4G the clear winner in this comparison.

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