Category Breakdown
HMD T21
Xiaomi Mi Max 3
Performance
72.771.3
Camera
19.153.7
Display
47.758.9
Battery
38.837.0
Build
76.677.7
Connectivity
60.760.7
Audio
87.687.6
Overall
51.952.6
Summary
- The HMD T21 features a larger 10.36-inch IPS LCD display with a resolution of 1200 x 2000 pixels, while the Xiaomi Mi Max 3 has a 6.9-inch IPS LCD with a 1080 x 2160 pixel resolution.
- In terms of performance, the T21 is powered by the Unisoc Tiger T612 chipset, whereas the Mi Max 3 utilizes the Qualcomm Snapdragon 636, with both offering 64GB of storage and 4GB of RAM.
- The camera on the Mi Max 3 is superior, featuring a 12 MP rear camera compared to the T21's 8 MP, and it supports 4K video recording, unlike the T21 which is limited to 1080p.
- Battery capacity is higher on the T21 at 8200 mAh, compared to the Mi Max 3's 5500 mAh, both supporting 18W charging.
- The T21 runs on Android 13, while the Mi Max 3 originally launched with Android 8.1 but can be upgraded to Android 10 with MIUI 12.
Side-by-side Specification Comparison
HMD T21
Xiaomi Mi Max 3
General
Release Date
2024, May 15
2018
Announced
2024, May 15
2018
Description
N/A
N/A
Display
Size
10.36"
6.9"
Type
IPS LCD, 360 nits (typ)
IPS LCD
Resolution
1200 x 2000 pixels, 5:3 ratio (~225 ppi density)
1080 x 2160 pixels, 18:9 ratio (~350 ppi density)
PPI
1200
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Scratch-resistant glass
To be confirmed
Performance
Chipset
Unisoc Tiger T612 (12 nm)
Qualcomm SDM636 Snapdragon 636 (14 nm)
CPU
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver)
GPU
Mali-G57
Adreno 509
Memory
64GB 4GB RAM, 128GB 4GB RAM
64GB 4GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
8 MP, AF
12 MP, f/1.9, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.2, (depth)
Main Camera Features
LED flash
Dual-LED flash, HDR, panorama
Front Camera
8 MP
8 MP, f/2.0, 1/4.0", 1.12µm
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
4K@30fps, 720p/1080p@30fps (gyro-EIS), 720p@120fps
Selfie Video
Yes
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
8200 mAh
5500 mAh
Battery Details
Li-Po 8200 mAh
Li-Ion 5500 mAh, non-removable
Charging Details
18W wired, PD3.0
18W wired, QC3
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
247.5 x 157.3 x 7.5 mm (9.74 x 6.19 x 0.30 in)
176.2 x 87.4 x 8 mm (6.94 x 3.44 x 0.31 in)
Weight
467 g
221 g
Materials
Glass front, aluminum back
Glass front, aluminum back, aluminum frame
Colors
Black Steel
Black, Champagne Gold, Blue
Foldable
✗
✗
SAR
N/A
1.58 W/kg (head) 1.42 W/kg (body)
Connectivity
SIM
Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / EVDO / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✓
✗
USB
USB Type-C 2.0, OTG
USB Type-C
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO
GPS, GLONASS, BDS
Audio
Stereo Speakers
✓
✓
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 13
Android 8.1 (Oreo), upgradable to Android 10, MIUI 12
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity (accessories only)
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

