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Realme C100x vs Xiaomi Poco M8

What C100x does better (5) and where Poco M8 wins (18) — every spec side by side.

Realme C100x
Realme · 2026C100x
7.1Score
5 advantages≈ $250
vs
Xiaomi Poco M8
Xiaomi · 2026Poco M8
8.0Score
18 advantages≈ $250
Higher score
6.3Display8.5
4.1Camera6.3
9.0Battery7.6
4.5Features7.7
Dimensions

Size comparison

C100xPoco M8
78.2 × 166.58.675.4 × 1647.4
C100xPoco M8Difference
Height166.5 mm164 mm+2.5 mm
Width78.2 mm75.4 mm+2.8 mm
Thickness8.6 mm7.4 mm+1.2 mm
Weight219 g178 g+41 g

Drawn to the same scale from the official dimensions (front and side).

Why is C100x better than Poco M8?

  1. Battery capacity8,000 mAh vs 5,520 mAh+45%
  2. 3.5 mm headphone jackYes · Poco M8: No
  3. Energy classA vs B
  4. Endurance per cycle91 h vs 50 h+81%
  5. Battery charge cycles1,600 vs 1,000+60%

Why is Poco M8 better than C100x?

  1. Peak brightness900 nits vs 3,200 nits3.6×
  2. OLED panelNo · C100x: Yes
  3. Storage (max)256 GB vs 512 GB2×
  4. 5GNo · C100x: Yes
  5. Stereo speakersNo · C100x: Yes
  6. RAM6 GB vs 8 GB+33%
  7. Pixel density254 ppi vs 388 ppi+53%
  8. Water resistance (IPx)IPx4 vs IPx6+50%
  9. Process12 nm vs 4 nm3×
  10. Selfie camera5 MP vs 20 MP4×
  11. CPU frequency1.8 GHz vs 2.4 GHz+33%
  12. Weight219 g vs 178 g+23%
Specifications

Side by side

Realme C100xRealme C100x≈ $2507.1
Xiaomi Poco M8Xiaomi Poco M8≈ $2508.0
Design
Weight219 g178 g
Thickness8.6 mm7.4 mm
Height166.5 mm164 mm
Width78.2 mm75.4 mm
FramePlasticPlastic
BackPlasticPlastic
Ingress protectionIP64IP66
Water resistance (IPx)IPx4IPx6
Glass protectionArmorShell glass or Panda Glass—
ColoursGolden Coast, Deepblue TidesBlack, Green, Silver
Display
Screen size6.8″6.8″
PanelIPS LCDAMOLED
OLED panelNoYes
Resolution (width)720 px1,080 px
Resolution (height)1,570 px2,392 px
Pixel density254 ppi388 ppi
Refresh rate120 Hz120 Hz
Peak brightness900 nits3,200 nits
Measured brightness—1,473 nits
Screen-to-body ratio86.8%89.7%
HDR—Yes
Performance
ChipsetUnisoc T7250Qualcomm SM6475-AB Snapdragon 6 Gen 3
Chip makerUnisocQualcomm
Process12 nm4 nm
CPU cores88
CPU frequency1.8 GHz2.4 GHz
GPUMali-G57 MP1Adreno 710
AnTuTu score—631,693
Geekbench 6 (multi-core)—2,898
3DMark Wild Life Extreme—866
Memory
RAM6 GB8 GB
Storage (max)256 GB512 GB
Storage (base)64 GB128 GB
Storage typeeMMC 5.1UFS 2.2
Memory card slotYesYes
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/1.8
Main sensor size—1/2.88"
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p4K
4K video frame rate—30 fps
Selfie camera5 MP20 MP
4K selfie videoNoNo
Battery
Battery capacity8,000 mAh5,520 mAh
Battery typeSi/CSi/C
Active use (test)—13.9 h
Wired charging45 W45 W
Charged in 30 min—55%
Wireless chargingNoNo
Connectivity
5GNoYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth5.25.1
NFCYesYes
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Infrared port—Yes
Satellite navigationGLONASS, GALILEO, BDSGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersNoYes
3.5 mm headphone jackYesNo
Loudspeaker loudness—-23.4 LUFS
Fingerprint sensorSideUnder display
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, compass
Software
OS at launchAndroid 16Android 15
PlatformAndroidAndroid
Interfacerealme UI 5.0HyperOS 2
Major OS updates promised—4
EU label
Energy classAB
Battery charge cycles1,6001,000
Endurance per cycle91 h50 h
Repairability classCC
Drop resistance classBA
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