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InnoReviews

POCO X8 vs Samsung Galaxy S21

WINNER
POCO X8

Xiaomi

POCO X8
59.9Inno Score
VS
Samsung Galaxy S21
43.6Inno Score
46.7Performance34.4
66.5Display49.1
42.6Camera40.8
77.2Battery36.9
86.7Features78.7
8 spec wins — POCO X83 spec wins — Samsung Galaxy S21

InnoReviews verdict

POCO X8 wins this phone face-off, 59.9 to 43.6, pulling ahead mainly in battery (+40) and display (+17). Samsung Galaxy S21 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the POCO X8

  • Stronger performance score: 47 vs 34
  • Stronger display score: 67 vs 49
  • Stronger battery score: 77 vs 37
  • Stronger features score: 87 vs 79
  • 317% higher Main camera: 50 MP vs 12 MP

Reasons to pick the Samsung Galaxy S21

  • 23% lower weight: 171 g vs 223 g
  • Has eSIM — the other doesn't

Display

Display comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
Screen size6.83 ″+10%6.2 ″
Panel typeAMOLEDAMOLED
Resolution1280x27722400x1080
Pixel density447 ppi+6%421 ppi
Refresh rate120 Hz120 Hz
Peak brightness3,500 nits+169%1,300 nits
Screen-to-body89.5 %—

Performance

Performance comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
ChipsetSnapdragon 6s Gen 4Samsung Exynos 2100
AnTuTu—746,547Bottom 18%
AnTuTu 11 (CPU)—252,025Bottom 14%
AnTuTu 11 (GPU)—127,819Bottom 35%
AnTuTu 11 (Memory)—144,909Bottom 16%
AnTuTu 11 (UX)—221,794Bottom 18%
Geekbench 6 (single)—1,430Top 46%
Geekbench 6 (multi)—3,550Bottom 50%
RAM (max)12 GB+50%8 GB
Storage options128/256GB128GB / 256GB
Storage typeUFS 2.2/3.1UFS 3.1

Camera

Camera comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
Main camera50 MP+317%12 MP
Main aperturef/1.8f/1.8
Ultra-wide—12 MP
Telephoto—64 MP
Max video1080p@30fps8K@24fps
Front camera16 MP+60%10 MP
OISYesYes

Battery

Battery comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
Capacity8,340 mAh+109%4,000 mAh
Wired charging67 W+168%25 W
Wireless charging—15 W

Design

Design comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
Weight223 g171 g+23%
Thickness8.6 mm7.9 mm+8%
IP ratingIP66/IP68/IP69/IP69KIP68
Frame materialPlasticAluminum

Connectivity

Connectivity comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 6
Bluetooth5.15.0
NFCYesYes
USBUSB-C 2.0USB-C 3.2
eSIMNoYes

Software

Software comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
OS at launchAndroid 16 (HyperOS 3)Android 11 (One UI 3.1)
OS update pledge—4 years

Audio

Audio comparison: POCO X8 versus Samsung Galaxy S21
SpecPOCO X8Samsung Galaxy S21
Stereo speakersYesYes
3.5mm jackNoNo

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