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  3. A5x 4G vs Y21d

OPPO A5x 4G vs Vivo Y21d

What A5x 4G does better (7) and where Y21d wins (7) — every spec side by side.

OPPO A5x 4G
OPPO · 2025A5x 4G
6.3Score
7 advantages≈ $120
vs
Vivo Y21d
Vivo · 2025Y21d
6.8Score
7 advantages≈ $110
Higher score
5.3Display5.4
3.2Camera4.1
8.2Battery8.4
4.1Features5.4
Dimensions

Size comparison

A5x 4GY21d
76.2 × 165.7877 × 166.18.4
A5x 4GY21dDifference
Height165.7 mm166.1 mm−0.4 mm
Width76.2 mm77 mm−0.8 mm
Thickness8 mm8.4 mm−0.4 mm
Weight193 g209 g−16 g

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

Why is A5x 4G better than Y21d?

  1. Wired charging45 W vs 44 W+2%
  2. 3.5 mm headphone jackYes · Y21d: No
  3. CPU frequency2.1 GHz vs 1.8 GHz+17%
  4. Weight193 g vs 209 g+8%
  5. Charged in 30 min42% vs 38%+11%
  6. Process11 nm vs 12 nm+9%
  7. Thickness8 mm vs 8.4 mm+5%

Why is Y21d better than A5x 4G?

  1. Main camera32 MP vs 50 MP+56%
  2. Storage (max)128 GB vs 256 GB2×
  3. Stereo speakersNo · A5x 4G: Yes
  4. Battery capacity6,000 mAh vs 6,500 mAh+8%
  5. Water resistance (IPx)IPx5 vs IPx8+60%
  6. Storage (base)64 GB vs 128 GB2×
  7. Bluetooth5 vs 5.2+4%
Specifications

Side by side

OPPO A5x 4GOPPO A5x 4G≈ $1206.3
Vivo Y21dVivo Y21d≈ $1106.8
Design
Weight193 g209 g
Thickness8 mm8.4 mm
Height165.7 mm166.1 mm
Width76.2 mm77 mm
Frame—Plastic
Back—Plastic
Ingress protectionIP65IP68
Water resistance (IPx)IPx5IPx8
Glass protectionCorning Gorilla Glass 7i, AGC DT-Star D+Ion strengthened glass
ColoursMidnight Blue, Laser WhiteLavender Purple, Black
Display
Screen size6.7″6.7″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,604 px1,608 px
Pixel density264 ppi264 ppi
Refresh rate90 Hz90 Hz
Peak brightness1,000 nits1,000 nits
Screen-to-body ratio84.9%84%
Performance
ChipsetQualcomm SM-6115 Snapdragon 6s 4G Gen1Unisoc T7225
Chip makerQualcommUnisoc
Process11 nm12 nm
CPU cores88
CPU frequency2.1 GHz1.8 GHz
GPUAdreno 610Mali-G52 MP1
Memory
RAM8 GB8 GB
Storage (max)128 GB256 GB
Storage (base)64 GB128 GB
Storage typeUFS 2.1eMMC 5.1
Memory card slotYesYes
Camera
Main camera32 MP50 MP
Main camera aperturef/1.8f/1.8
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera5 MP5 MP
4K selfie videoNoNo
Battery
Battery capacity6,000 mAh6,500 mAh
Battery type—Si/C
Wired charging45 W44 W
Charged in 30 min42%38%
Wireless chargingNoNo
Connectivity
5G—No
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth55.2
NFCNoNo
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersNoYes
3.5 mm headphone jackYesNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, proximity, compass
Software
OS at launchAndroid 15Android 15
PlatformAndroidAndroid
InterfaceColorOS 15Funtouch 15
EU label
Energy classAA
Battery charge cycles1,600—
Endurance per cycle64 h—
Repairability classB—
Drop resistance classA—
To compare: 0up to 4 models
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