Compare
Redmi Note 15 5G vs Vivo Y21 5G
₹1,000 apart. Here is what actually separates them.
Which one should you buy?
The Redmi Note 15 5G starts ₹1,000 lower: ₹19,999 against ₹20,999 for the Y21 5G.
- The Y21 5G has the bigger battery: 6,500 mAh against 5,520 mAh.
- The Redmi Note 15 5G has the better screen on paper: sharper (2392 x 1080 against HD+).
- Only the Redmi Note 15 5G has an ultrawide camera. Only the Redmi Note 15 5G stabilises its main camera optically (OIS), which helps in low light and on video.
- The Redmi Note 15 5G is the lighter phone: 179 g against 209 g.
- The Redmi Note 15 5G is better sealed against dust and water: IP66 against IP65.
Which to buy
Get the Redmi Note 15 5G for the lower price, the sharper screen and the ultrawide camera. Get the Y21 5G for the bigger battery.
Every spec, lined up
Better on paper
Display
SpecRedmi Note 15 5GY21 5G
Size
6.77 inches
6.74 inches
Panel
Curved AMOLED display
LCD
Resolution
2392 x 1080 (better)
1600 x 720 (HD+)
Refresh rate
120Hz
120Hz
Peak brightness
3,200 nits
Not listed
Protection
Corning Gorilla Glass
Not listed
Performance
SpecRedmi Note 15 5GY21 5G
Chipset
Snapdragon 6 Gen 3
Dimensity 6300
CPU
8-core
Octa-core, up to 2.4GHz
GPU
Adreno
Not listed
RAM
6GB, 8GB
4GB, 6GB
Storage
128GB, 256GB
64GB, 128GB
Software
HyperOS 3 · 2 OS updates
OriginOS 6, Android 16
Camera
SpecRedmi Note 15 5GY21 5G
Rear cameras
108MP main (OIS) + 8MP ultrawide
50MP main (f/1.8) + 0.08MP auxiliary (f/3.0)
Front camera
20MP
5MP (f/2.2)
Video
4K at 30fps
Not listed
Battery
SpecRedmi Note 15 5GY21 5G
Battery
5,520 mAh
6,500 mAh (better)
Wired charging
45W (better)
44W
Build and connectivity
SpecRedmi Note 15 5GY21 5G
Network
5G
5G (SA/NSA), 4G VoLTE
SIM
Dual nano SIM
Hybrid dual nano SIM (up to 2TB microSD)
Wi-Fi and Bluetooth
Wi-Fi 6, Bluetooth 5.3
Dual-band Wi-Fi (2.4GHz, 5GHz), Bluetooth 5.4
NFC
No
No
Dust and water
IP66 (better)
IP65
Weight
179 g (better)
209 g
Thickness
7.4 mm (better)
8.39 mm
Colours
Black, Glacier Blue, Mist Purple
Champagne Gold, Midnight Blue
Availability
SpecRedmi Note 15 5GY21 5G
Launch in India
31 Dec 2025
25 Mar 2026
Status
On sale
On sale
Versions and prices
Redmi Note 15 5G
- 6GB + 128GB₹19,999
- 8GB + 256GB₹21,999
Y21 5G
- 4GB + 64GB₹20,999
- 4GB + 128GB₹23,999
- 6GB + 128GB₹27,999
Prices in India as we last checked them. Sales and bank offers change them often, so check before you buy.
