Home Phone comparison Xiaomi Redmi K70 Ultra and Xiaomi Redmi 15 5G - Which is better?

Xiaomi Redmi K70 Ultra vs Xiaomi Redmi 15 5G

82 out 100
Xiaomi Redmi K70 Ultra
VS
61 out 100
Xiaomi Redmi 15 5G
Xiaomi Redmi K70 Ultra
Xiaomi Redmi 15 5G

Compared 2 smartphones : Xiaomi Redmi K70 Ultra Manufactured in July, 2024, with display 6.67 with chipsetMediaTek Dimensity 9300 Plus, vs Xiaomi Redmi 15 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 6s Gen 3. 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 K70 Ultra
  • Higher pixel density: 446ppi
  • Lighter design: 211g vs 224g
  • Newer Bluetooth version: 5.4 vs 5.1
Reasons to choose Xiaomi Redmi 15 5G
  • Larger display: 6.9in
  • Higher battery capacity: 7000mAh vs 5500mAh

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB
- 24/1024 GB		 - 4/128 GB
- 6/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Redmi K70 Ultra and Xiaomi Redmi 15 5G
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.
Customize your score
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 K70 Ultra
vs
Xiaomi Redmi 15 5G

Display

Display quality comparison
Type OLED IPS LCD
Size 6.67 in 6.9 in
Resolution 1220x2712 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 446 ppi 374 ppi
Refresh rate 144 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 4000 nits n/a
HDR support Yes Dolby Vision No
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 89.1 % 83.1 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a

Design & Build

Design and ergonomics comparison
Height 160.4 mm (6.31 in) 171.1 mm (6.74 in)
Width 75.1 mm (2.96 in) 82.1 mm (3.23 in)
Thickness 8.4 mm (0.33 in) 8.6 mm (0.34 in)
Weight 211 g (7.44 oz) 224 g (7.9 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - White
- Black
- Green
- Orange
- Purple		 - Black
- Gray
- Green
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Xiaomi Redmi K70 Ultra
89.1 %
Xiaomi Redmi 15 5G
83.1 %

Performance

Testing Xiaomi Redmi K70 Ultra and Xiaomi Redmi 15 5G In benchmarks
Processor
Chipset MediaTek Dimensity 9300 Plus Qualcomm Snapdragon 6s Gen 3
Max Frequency 3400 MHz 2300 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/2 (Cortex-A720)
- 3/2.85 (Cortex-X4)
- 1/3.4 (Cortex-X4)		 - 6/2 (Cortex-A55)
- 2/2.3 (Cortex-A78)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor MediaTek APU 790 Hexagon
Graphics Mali-G720 Immortalis MP12 Adreno 619
GPU Cores 1536 256
GPU Frequency 1300 MHz 900 MHz
FLOPS 3993.6 GFLOPS 460.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi K70 Ultra
2224
Xiaomi Redmi 15 5G
935
Geekbench 6 (Multi-Core)
Xiaomi Redmi K70 Ultra
7415
Xiaomi Redmi 15 5G
2109
Geekbench 6 (Single-Core)2224935
Geekbench 6 (Multi-Core)74152109
Geekbench Compute (GPU)15810n/a
Sources: Geekbench v6 [Xiaomi Redmi K70 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi K70 Ultra
2149581
Xiaomi Redmi 15 5G
473154
CPU502823153170
GPU85563891687
Memory42894799792
UX362173128505
NanoReview Score2149581473154
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi K70 Ultra
13463
Xiaomi Redmi 15 5G
n/a
Stability70 %n/a
Graphics Test80 fpsn/a
Graphics Score13463n/a
Sources: 3DMark [Xiaomi Redmi K70 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi K70 Ultra
15188
Xiaomi Redmi 15 5G
n/a
Writing score17583n/a
Web score15413n/a
Video editing6546n/a
Data manipulation14781n/a
NanoReview Score15188n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB
- 24 GB		 4 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4800 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoNo

Software

OS Android 14 Android 15
UI Skin HyperOS 1.0 HyperOS 2.0

Battery

Volume 5500 mAh 7000 mAh
Max Charging Power 120 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 12 min) Yes
Full Charge Time 0:24 h n/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels n/a
Zoom Digital Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 960 fps (1080p) n/a
Wide-angle lens 119 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 Bokeh effect
Main lens
Matrix50 MP50 MP
Aperturef/1.7f/1.8
Focal length23 mmn/a
SensorSony IMX906n/a
Sensor size1/1.56n/a
Pixel size1 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
SensorSamsung S5KJN1n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 20 MP 8 MP
Aperture n/a f/2.0
Sensor Omnivision OV20B n/a
Sensor size 1/2.0 n/a
Autofocus n/a 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 7 (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5.1
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version n/a 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No Yes
FM Radio n/a Yes

Other

Class Flagship Mid-range
Announced July, 2024 yr August, 2025 yr
Release Date July, 2024 yr August, 2025 yr
Launch Price ($) 360 n/a
MSRP ($) n/a 230
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 120 W Yes, 33 W

Note

Xiaomi Redmi K70 Ultra:

Also known as Redmi K70 Extreme Edition in China.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi K70 Ultra the clear winner in this comparison.

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