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Infinix Smart HD 2021 vs Samsung Galaxy A21

What Smart HD 2021 does better (2) and where Galaxy A21 wins (13) — every spec side by side.

Infinix Smart HD 2021
Infinix · 2020Smart HD 2021
4.4Score
2 advantages≈ $75
vs
Samsung Galaxy A21
Samsung · 2020Galaxy A21
4.6Score
13 advantages≈ $75
Higher score
2.9Display3.4
2.3Camera5.6
5.6Battery2.6
2.4Features5.0
Dimensions

Size comparison

Smart HD 2021Galaxy A21
75.2 × 158.39.876.7 × 167.88.1
Smart HD 2021Galaxy A21Difference
Height158.3 mm167.8 mm−9.5 mm
Width75.2 mm76.7 mm−1.5 mm
Thickness9.8 mm8.1 mm+1.7 mm
Weight195 g193 g+2 g

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

Why is Smart HD 2021 better than Galaxy A21?

  1. Battery capacity5,000 mAh vs 4,000 mAh+25%
  2. Pixel density282 ppi vs 270 ppi+4%

Why is Galaxy A21 better than Smart HD 2021?

  1. Main camera8 MP vs 16 MP2×
  2. RAM2 GB vs 3 GB+50%
  3. NFCNo · Smart HD 2021: Yes
  4. Selfie camera5 MP vs 13 MP2.6×
  5. CPU frequency1.8 GHz vs 2.35 GHz+31%
  6. CPU cores4 vs 82×
  7. Rear cameras1 vs 22×
  8. Ultra-wide cameraNo · Smart HD 2021: Yes
  9. Screen size6.1″ vs 6.5″+7%
  10. Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
  11. Thickness9.8 mm vs 8.1 mm+21%
  12. Main camera aperturef/2 vs f/1.8+11%
Specifications

Side by side

Design
Weight195 g193 g
Thickness9.8 mm8.1 mm
Height158.3 mm167.8 mm
Width75.2 mm76.7 mm
FramePlasticPlastic
BackPlasticPlastic
ColoursTopaz Blue, Obsidian Black, Quartz GreenBlack
Display
Screen size6.1″6.5″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,560 px1,600 px
Pixel density282 ppi270 ppi
Refresh rate60 Hz60 Hz
Peak brightness500 nits—
Screen-to-body ratio76.7%79.3%
Performance
ChipsetMediatek MT6761D Helio A20Mediatek MT6765 Helio P35
Chip makerMediaTekMediaTek
Process12 nm12 nm
CPU cores48
CPU frequency1.8 GHz2.35 GHz
GPUPowerVR GE8320PowerVR GE8320
Memory
RAM2 GB3 GB
Storage (max)32 GB32 GB
Storage (base)32 GB32 GB
Storage typeeMMC 5.1eMMC 5.1
Memory card slotYesYes
Camera
Main camera8 MP16 MP
Main camera aperturef/2f/1.8
Main sensor size—1/3.06"
Rear cameras12
Optical stabilisationNoNo
Ultra-wide cameraNoYes
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera5 MP13 MP
4K selfie videoNoNo
Battery
Battery capacity5,000 mAh4,000 mAh
Battery type—Li-Po
Wired charging—15 W
Wireless chargingNoNo
Connectivity
5GNoNo
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 4Wi-Fi 5
Bluetooth55
NFCNoYes
USBmicroUSB 2.0USB Type-C 2.0
USB version—2
Satellite navigation—GLONASS, BDS
Features
Stereo speakersNoNo
3.5 mm headphone jackYesYes
Fingerprint sensorRearRear
SensorsFingerprint (rear-mounted), accelerometer, proximityFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
SAR (head)0.53 W/kg1.27 W/kg
Software
OS at launchAndroid 10 (Go edition)Android 10
PlatformAndroidAndroid
InterfaceXOS 6.2One UI 2.0
To compare: 0up to 4 models
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