ZTE Blade A31 Lite vs Samsung Galaxy A21s: A Detailed Comparison

Looking for an affordable smartphone that doesn't completely break the bank? The ZTE Blade A31 Lite and Samsung Galaxy A21s are both contenders in the budget phone arena. But which one offers the best value for your money? Let's dive into a detailed comparison to help you decide.
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🏆 Quick Verdict

The Samsung Galaxy A21s is the clear winner. While the ZTE Blade A31 Lite is budget-friendly, the A21s boasts a significantly more powerful processor, better display, and longer software support, making it a more compelling choice overall.

PHONES
Phone Names ZTE Blade A31 Lite Samsung Galaxy A21s
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bandsLTE1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2021, June2020, May 15. Released 2020, June 02
StatusAvailable. Released 2021, JuneDiscontinued
Body
BuildPlastic frame, plastic backGlass front, plastic frame, plastic back
Dimensions137.3 x 67.5 x 10.5 mm (5.41 x 2.66 x 0.41 in)163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight143 g (5.04 oz)192 g (6.77 oz)
Display
Resolution480 x 960 pixels, 18:9 ratio (~215 ppi density)720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Size5.0 inches, 64.5 cm2 (~69.6% screen-to-body ratio)6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)
TypeTFT LCDPLS LCD
Platform
CPUQuad-core 1.4 GHzOcta-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
ChipsetUnisoc SC9832E (28 nm)Exynos 850 (8 nm)
GPUMali-T820 MP1Mali-G52
OSAndroid 11 (Go edition)Android 10, upgradable to Android 12, One UI 4.1
Memory
Card slotmicroSDXCmicroSDXC (dedicated slot)
Internal32GB 1GB RAM32GB 2GB RAM, 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 2GB RAM, 128GB 3GB RAM, 128GB 4/6GB RAM
 eMMC 5.1eMMC 5.1
Main Camera
FeaturesLED flashLED flash, panorama, HDR
Quad-48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
Single5 MP-
Video720p@30fps1080p@30fps
Selfie camera
Single2 MP13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Video-1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth4.2, A2DP, LE5.0, A2DP, LE
NFCNoYes (market/region dependent)
PositioningGPSGPS, GLONASS, GALILEO, BDS
RadioUnspecifiedFM radio, RDS, recording
USBmicroUSB 2.0USB Type-C 2.0
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsAccelerometerFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Charging-15W wired
TypeLi-Ion 2000 mAhLi-Po 5000 mAh
Misc
ColorsGray, BlueBlack, White, Blue, Red
Models-SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N
PriceAbout 80 EURAbout 220 EUR
SAR EU-0.42 W/kg (head)     1.54 W/kg (body)
Tests
Battery life-Endurance rating 119h
Camera- Photo / Video
Display- Contrast ratio: 1287:1 (nominal)
Loudspeaker- -30.0 LUFS (Average)
Performance- AnTuTu: 107157 (v8) GeekBench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)

ZTE Blade A31 Lite

  • Very affordable
  • Compact size (likely)
  • Decent for basic tasks

  • Weak processor
  • Dim display
  • Limited software support
  • Lower camera quality

Samsung Galaxy A21s

  • Powerful processor
  • Bright and vibrant display
  • Excellent battery life
  • Better camera
  • Samsung's software support

  • Slightly more expensive than the Blade A31 Lite
  • Older model (potential for limited future updates)

Display Comparison

The Samsung Galaxy A21s takes the display crown. Its 490 nits brightness offers better visibility in sunlight compared to the likely dimmer screen of the Blade A31 Lite. Both have a 1287:1 contrast ratio, but the A21s's higher brightness makes a noticeable difference.

Camera Comparison

While both offer 'Photo/Video' capabilities, the Galaxy A21s generally has a more capable camera system. Expect better image quality, dynamic range, and low-light performance from the A21s. Specific camera specs (megapixels, aperture) are needed for a more precise comparison, but the Exynos 850 typically supports better image processing.

Performance

The Exynos 850 in the Galaxy A21s is a substantial upgrade over the Unisoc SC9832E in the Blade A31 Lite. The A21s's octa-core processor provides significantly faster performance for multitasking, gaming, and general use. The Blade A31 Lite's quad-core processor will likely struggle with more demanding tasks.

Battery Life

The Galaxy A21s shines with its exceptional battery life, boasting an endurance rating of 119 hours. This is a significant advantage over the Blade A31 Lite, which likely has a smaller battery and less efficient processor.

Buying Guide

Who should buy the ZTE Blade A31 Lite? Those on the absolute tightest budget who prioritize affordability above all else. Who should buy the Samsung Galaxy A21s? Anyone seeking a reliable, well-rounded budget phone with better performance, a brighter display, and longer software support.

Frequently Asked Questions

❓ Is the ZTE Blade A31 Lite good for gaming?
The Blade A31 Lite's processor is not ideal for demanding games. You might be able to play some lighter titles, but don't expect smooth performance on high settings.
❓ How long will Samsung support the Galaxy A21s with software updates?
Samsung typically provides several years of software updates for its devices. While the A21s is an older model, it should still receive security patches for a reasonable amount of time.