Category Breakdown
Microsoft Surface Duo 2
Xiaomi Mi Mix 3 5G
Performance
70.868.5
Camera
51.650.9
Display
84.579.5
Battery
43.543.5
Build
72.872.8
Overall
64.863.0
Summary
- The Microsoft Surface Duo 2 features a unique dual-screen design with a larger 8.3-inch AMOLED display at 90Hz, providing a smoother visual experience compared to the Xiaomi Mi Mix 3 5G's 6.39-inch Super AMOLED display at 60Hz.
- In terms of performance, the Surface Duo 2 is powered by the Snapdragon 888 chipset, offering superior processing capabilities over the Snapdragon 855 in the Mi Mix 3.
- Both devices have a dual-camera setup with 12 MP sensors and optical image stabilization, but the Surface Duo 2 includes an additional ultrawide lens.
- The Surface Duo 2 has a larger battery capacity of 4449 mAh compared to the Mi Mix 3's 3800 mAh, supporting longer usage.
- In terms of software, the Surface Duo 2 runs on Android 11, while the Mi Mix 3 operates on an older Android 9.0 with MIUI 12, potentially affecting the user experience and available features.
- Build quality is also notable, with the Surface Duo 2 utilizing Gorilla Glass Victus, while the Mi Mix 3 combines Gorilla Glass 5 and a ceramic back, offering a premium feel but with a heavier weight.
Side-by-side Specification Comparison
Microsoft Surface Duo 2
Xiaomi Mi Mix 3 5G
General
Release Date
2021, September 22
2019
Announced
2021, September 22
2019
Description
N/A
Also available with 4G/LTE only
Display
Size
8.3"
6.39"
Type
AMOLED, 90Hz, HDR, 800 nits (peak)
Super AMOLED, HDR
Resolution
1892 x 2688 pixels (~401 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
PPI
1892
1080
Refresh Rate
90Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✓
✓
Protection
Corning Gorilla Glass Victus
Corning Gorilla Glass 5
Performance
Chipset
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
Qualcomm SM8150 Snapdragon 855 (7 nm)
CPU
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
GPU
Adreno 660
Adreno 640
Memory
128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
No
No
Camera
Main Camera
12 MP
12 MP
Main Camera Details
12 MP, f/1.7, 27mm (wide), 1.4µm, dual pixel PDAF, OIS12 MP, f/2.4, 51mm (telephoto), 1.0µm, PDAF, OIS, 2x optical zoom16 MP, f/2.2, 13mm (ultrawide), 1.0µmTOF 3D, (depth)
12 MP (wide), f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS12 MP (telephoto), 1/3.4", 1.0µm
Front Camera
12 MP
N/A
Front Camera Details
12 MP, f/2.0, 24mm (wide), 1.0µm
N/A
Video Recording
4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, HDR
4K@30/60fps, 1080p@30/60/240fps, 1080p@960fps; gyro-EIS
Selfie Video
1080p@30fps
1080p@30fps
OIS
✓
✓
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
4449 mAh
3800 mAh
Battery Details
Li-Po 4449 mAh
Li-Po 3800 mAh, non-removable
Charging Details
23W wired
18W wired, QC4
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
Unfolded: 184.5 x 145.2 x 5.5 mmFolded: 145.2 x 92.1 x 11 mm
157.9 x 74.7 x 9.4 mm (6.22 x 2.94 x 0.37 in)
Weight
284 g
225 g
Materials
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass)
Glass front (Gorilla Glass 5), ceramic back, aluminum frame (7000 series)
Water Resistance
N/A
N/A
Colors
Glacier, Obsidian
Sapphire Blue
Foldable
✗
✗
Connectivity
SIM
Nano-SIM +eSIM
Nano-SIM
Network
GSM / HSPA / LTE / 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
Network Speed
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat20 2000/150 Mbps, 5G 6 Gbps DL
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/150 Mbps, 5G (2+ Gbps DL)
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.1, A2DP, LE, aptX Adaptive
5.0, A2DP, LE, aptX HD
NFC
✓
✓
USB
USB Type-C 3.2, DisplayPort
USB Type-C
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, QZSS, BDS
GPS (L1+L5), GLONASS (L1), BDS (B1), GALILEO (E1+E5a), QZSS (L1+L5)
Software
Operating System
Android 11
Android 9.0 (Pie), MIUI 12
OS Version
Android 11
Android 9.0 (Pie), MIUI 12
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), dual accelerometer, dual gyro, dual proximity, dual compass
Fingerprint (rear-mounted), accelerometer, gyro, compass
Audio
Stereo Speakers
✓
✗
Loudspeaker
Yes, with stereo speakers
Yes
Audio Jack
No
No

