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vivo Y31d vs Vivo Y21d 30
Compare vivo Y31d vs Vivo Y21d. In this table, we’ll compare both phones in simple terms—camera, battery, design, and performance—so you can easily pick the one that’s right for your lifestyle and budget.
Compare vivo Y31d vs Vivo Y21d
Key specifications
| Display |
6.75 inch (1570 x 720 Pixels) |
6.68 inch (1608 x 720 Pixels) |
| Battery |
7200 mAh (44W) |
6500 mAh (44W) |
| Processor |
Qualcomm Snapdragon 6s 4G Gen 2 |
Unisoc T7225 (12 nm) |
| Camera |
50MP+Auxiliary lens |
50MP+Auxiliary lens |
| Operating System |
Android 16 |
Android 15 |
General
| Launch Date |
16 January 2026 |
11 October 2025 |
| Color |
Glow White, Starlight Grey |
Lavender Purple, Black |
| Water Resistance |
IP68/IP69 |
IP68/IP69 |
| Availability Status |
|
|
Network
| Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE |
| 4G Support |
Yes |
Yes |
| 5G Support |
No |
No |
| SIM Size |
Nano SIM |
Nano SIM |
| SIM Type |
Dual |
Dual |
Body
| Dimensions (mm) |
166.6 x 78.4 x 8.4 |
166.1 x 77 x 8.4 |
| Weight (g) |
219 |
209 |
| Build |
Glass front, plastic frame, plastic back |
Glass front, plastic back, plastic frame |
Display
| Display Size |
6.75 inch |
6.68 inch |
| Resolution |
1570 x 720 Pixels |
1608 x 720 Pixels |
| Display Type |
IPS LCD |
IPS LCD |
| Refresh Rate |
120Hz |
90Hz |
| Britness |
1250 nits (HBM) |
1000 nits (HBM) |
| Pixel Per Density (PPI) |
~256 |
~264 |
| Protection |
|
Ion strengthened glass |
Battery
| Battery Type |
Non-removable |
Non-removable |
| Capacity |
7200 mAh |
6500 mAh |
| Charging |
44W |
44W |
Performance
| Processor |
Qualcomm Snapdragon 6s 4G Gen 2 |
Unisoc T7225 (12 nm) |
| Core |
Octa-core |
Octa-core |
| CPU |
1.9 GHz |
1.8 GHz |
| GPU |
Adreno |
Mali-G52 MP1 |
Storage
| RAM |
6/8 GB |
4-8 GB |
| Internal Storage |
128GB/256GB |
128GB/256GB |
| Expandable |
No |
microSDXC (dedicated slot) |
| Variants |
(128GB+6GB) (256GB+6GB) (256GB+8GB) |
(128GB+4GB) (128GB+6GB) (128GB+8GB) (256GB+6GB) |
| UFS |
UFS 2.2 |
|
Camera
| Camera Setup |
Dual |
Single |
| Camera Size |
50MP+Auxiliary lens |
50MP+Auxiliary lens |
| Flash |
Yes |
Yes |
| Selfie Camera |
8 MP |
5 MP |
Software
| Operating System |
Android 16 |
Android 15 |
| UI |
OriginOS 6 |
Funtouch 15 |
Connectivity
| Wi-Fi |
Yes |
Yes |
| UI |
802.11 a/b/g/n/ac |
802.11 a/b/g/n/ac |
| Bluetooth |
Yes |
Yes |
| Bluetooth Version |
5.1 |
5.2 |
| Hotspot |
|
|
| GPS |
Yes |
Yes |
| Audio Jack |
No |
No |
| USB Type |
USB Type-C 2.0 |
USB Type-C 2.0 |
| OTG Support |
Yes |
Yes |
| Infrared |
Yes |
No |
| NFC |
No |
No |
Sensors
| Face ID |
|
|
| Fingerprint |
Yes (side-mounted) |
Yes (side-mounted) |
| Accelereometer |
|
|
| Proximity |
Yes |
Yes |
| Compass |
Yes |
Yes |
| Gyroscope |
Yes |
|
| Barometer |
|
|
| spO2 |
|
|
| Heart Rate |
|
|
| Color Spectrum |
|
|
