Home Phone comparison Xiaomi Poco X7 and Xiaomi Poco C40 - Which is better?

Xiaomi Poco X7 vs Xiaomi Poco C40

66 out 100
Xiaomi Poco X7
VS
40 out 100
Xiaomi Poco C40
Xiaomi Poco X7
Xiaomi Poco C40

Compared 2 smartphones : Xiaomi Poco X7 Manufactured in January, 2025, with display 6.67 with chipsetMediaTek Dimensity 7300 Ultra, vs Xiaomi Poco C40, Manufactured in July, 2022 with chipsetJLQ JR510. 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 Poco X7
  • Higher pixel density: 446ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 185.5g vs 204g
  • Newer Bluetooth version: 5.4 vs 5
  • Supports Dolby Atmos
  • Infrared port
  • Built-in eSIM
Reasons to choose Xiaomi Poco C40
  • Larger display: 6.71in
  • Higher battery capacity: 6000mAh vs 5110mAh

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/512 GB		 - 2/32 GB
- 3/32 GB
- 4/32 GB
- 4/64 GB

Review

Key Specs Xiaomi Poco X7 and Xiaomi Poco C40
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 Poco X7
vs
Xiaomi Poco C40

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.67 in 6.71 in
Resolution 1220x2712 pixels 720x1650 pixels
Aspect ratio 20:9 20:9
Pixel density 446 ppi 268 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes No
Max brightness 1200 nits 400 nits
HDR support Yes Dolby Vision No
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 88.9 % 83.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Xiaomi Poco X7
1107 nits
Xiaomi Poco C40
447 nits
sRGB gamut100 %93.1 %
PWM (Flicker)120 Hzn/a
Response time1 ms34 ms
Contrast∞ Infinite1170:1
Sources: NotebookCheck [Xiaomi Poco X7], [Xiaomi Poco C40]

Design & Build

Design and ergonomics comparison
Height 162.33 mm (6.39 in) 169.59 mm (6.68 in)
Width 74.42 mm (2.93 in) 76.56 mm (3.01 in)
Thickness 8.4 mm (0.33 in) 9.18 mm (0.36 in)
Weight 185.5 g (6.54 oz) 204 g (7.2 oz)
Water resistance IP68 IP52
Cooling system Vapor chamber n/a
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Silver
- Green		 - Black
- Green
- Yellow
Fingerprint sensor Yes In-Display Yes rear
Screen-to-body ratio
Xiaomi Poco X7
88.9 %
Xiaomi Poco C40
83.7 %

Performance

Testing Xiaomi Poco X7 and Xiaomi Poco C40 In benchmarks
Processor
Chipset MediaTek Dimensity 7300 Ultra JLQ JR510
Max Frequency 2500 MHz 2000 MHz
CPU Cores 8 (4 + 4) n/a
Architecture - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)		 n/a
Process TSMC n/a
Transistor Size 4 nm n/a
Neural Processor MediaTek APU 655 n/a
Graphics Mali-G615 MP2 n/a
GPU Cores 256 n/a
GPU Frequency 1047 MHz n/a
FLOPS 536.1 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X7
1031
Xiaomi Poco C40
217
Geekbench 6 (Multi-Core)
Xiaomi Poco X7
2842
Xiaomi Poco C40
797
Geekbench 6 (Single-Core)1031217
Geekbench 6 (Multi-Core)2842797
Geekbench Compute (GPU)2507n/a
Sources: Geekbench v6 [Xiaomi Poco X7], [Xiaomi Poco C40]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X7
675069
Xiaomi Poco C40
160779
CPU20319452804
GPU14333816776
Memory15927554670
UX16926236529
NanoReview Score675069160779

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 3 GB
- 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz n/a
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB		- 32 GB
- 64 GB
Storage TypeUFS 2.2UFS 2.2
Memory CardNoMicroSD

Software

OS Android 14 Android 11
OS Size n/a 12 GB
UI Skin HyperOS 1.0 MIUI 13 for POCO

Battery

Volume 5110 mAh 6000 mAh
Max Charging Power 45 W 18 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (62% in 30 min) Yes (50% in 60 min)
Full Charge Time 1:05 h 4:00 h
Battery Life Test
Battery Life
Xiaomi Poco X7
19:25
Xiaomi Poco C40
27:32
Web Browsing06:50 h11:04 h
Video Playback10:59 h14:58 h
Games05:14 h06:25 h
Standby Mode104 h141 h

Main camera

Matrix 50 MP 13 MP
Photo resolution 8192x6144 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Optical Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (720p) No
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 13 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP13 MP
Aperturef/1.5f/2.2
Focal length26 mmn/a
SensorSony IMX882n/a
Sensor size1/1.96n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Focal length15 mmn/a
SensorSony IMX355n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 20 MP 5 MP
Photo resolution 5184x3888 pixels 2592x1944 pixels
Aperture f/2.2 f/2.2
Focal length 25 mm n/a
Sensor Omnivision OV20B CMOS
Sensor size 1/4.0 n/a
Pixel size 0.7 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (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
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 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes No
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM 2, 3, 5, 8
3G BandsWCDMA B1/2/4/5/6/8/19WCDMA 1, 2, 4, 5, 8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B28/B38/B40/B41/B42/B48/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28/B38/B40/B41)
LTE categoryn/a4
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi Poco X7
91.4 dB
Xiaomi Poco C40
80.1 dB

Other

Class Mid-range Budget
Announced January, 2025 yr July, 2022 yr
Release Date January, 2025 yr July, 2022 yr
Launch Price ($) 229 149
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Fingerprint sensor
Charger Included Yes 45 W Yes 10 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Poco X7 the clear winner in this comparison.

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