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HMD XR21
HMD · phone

XR21

Xiaomi Redmi Note 15 4G
Xiaomi · phone

Redmi Note 15 4G

3

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Launch

2
Announced
2024-05-14
2025-12-18
Status
Available
Available

Network

4
SIM
  • Dual SIM (Nano-SIM)
  • Dual SIM (Embedded-SIM)
  • Dual SIM (Nano-SIM)
2G bands
–
  • GSM-850
  • P-GSM-900
  • E-GSM-900
  • DCS-1800
  • PCS-1900
3G bands
–
  • B19 (800 MHz)
  • B5 (850 MHz)
  • B8 (900 MHz)
  • B4 (1700 MHz)
  • B2 (1900 MHz)
  • B1 (2100 MHz)
4G bands
–
  • B1 (2100 MHz)
  • B2 (1900 MHz)
  • B3 (1800 MHz)
  • B4 (1700 MHz)
  • B5 (850 MHz)
  • B7 (2600 MHz)
  • B8 (900 MHz)
  • B12 (700 MHz)

Body

8
Form factor
Bar
Bar
Height
168 mm
164 mm
Width
78.6 mm
75.4 mm
Thickness
10.5 mm
7.9 mm
Weight
231 g
183.7 g
Protection
IP68/IP69K
–
Colors
Midnight Black
  • Black
  • Forest Green
  • Glacier Blue
  • Purple
QWERTY keyboard
✕ No
✕ No

Platform

2
OS
Android 12
Android 15, HyperOS 2
Chipset
Qualcomm Snapdragon 695 5G (6 nm)
MediaTek Helio G100 Ultra (6 nm)

Memory

3
Memory
  • 6GB RAM, 128GB
  • 6GB RAM, 128GB
  • 8GB RAM, 128GB
  • 6GB RAM, 256GB
  • 8GB RAM, 256GB
  • 8GB RAM, 512GB
Dedicated card slot
✕ No
✕ No
Card slot
–
microSDXC

Display

10
Size
6.49"
6.77"
Resolution
FHD
FHD
Resolution width
1080 px
1080 px
Resolution height
2400 px
2392 px
Pixel density
406 ppi
388 ppi
Refresh rate
120 Hz
120 Hz
High refresh rate
✓ Yes
✓ Yes
Display area
101.7 cm²
110.9 cm²
Screen-to-body ratio
77%
89.7%
Technology
IPS LCD
AMOLED

Main camera

5
Cameras
  • 64MP, f/1.8, wide, PDAF
  • 8MP, f/2.2, ultrawide
  • 108MP, f/1.7, wide, PDAF
Flash
Dual-LED dual-tone
LED
Video
1080p@30fps
1080p@30/60fps
HDR
✓ Yes
✓ Yes
Panorama
✓ Yes
✓ Yes

Selfie camera

4
Cameras
  • 16MP, f/2.4, wide
  • 20MP, f/2.2, wide
Video
1080p@30fps
1080p@30fps
HDR
✕ No
✕ No
Pop-up camera
✕ No
✕ No

Sound

3
3.5mm jack
✓ Yes
✕ No
Stereo speakers
✓ Yes
✓ Yes
Loudspeaker
✓ Yes
✓ Yes

Sensors

7
Fingerprint
side-mounted
under display
Gyroscope
✓ Yes
✓ Yes
Compass
✓ Yes
✓ Yes
Barometer
✓ Yes
✕ No
Heart rate
✕ No
✕ No
Accelerometer
✓ Yes
✓ Yes
Proximity
✓ Yes
✓ Yes

Connectivity

7
Wi-Fi
Wi‑Fi 6 (802.11ax) (600–9608 Mbit/s)
Wi‑Fi 5 (802.11ac) (433–6933 Mbit/s)
Bluetooth
Bluetooth 5.1
Bluetooth 5.3
USB
USB Type-C 2.0
USB Type-C 2.0
GPS
✓ Yes
✓ Yes
NFC
✓ Yes
✕ No
Infrared port
✕ No
✓ Yes
FM radio
✕ No
✕ No

Battery

5
Capacity
4800 mAh
6000 mAh
Type
Li-Po
–
Charging power
33 W
33 W
Removable
✕ No
✕ No
Wireless charging
✕ No
✕ No