Category Breakdown
Huawei P9 Plus
vivo X21 UD
Performance
60.364.8
Camera
42.442.4
Display
79.579.5
Battery
43.543.5
Build
79.879.8
Overall
59.160.4
Summary
- The Huawei P9 Plus features a 5.5-inch Super AMOLED display with a resolution of 1080 x 1920 pixels, while the vivo X21 UD has a slightly larger 6.28-inch Super AMOLED display with a higher resolution of 1080 x 2280 pixels.
- In terms of performance, the P9 Plus is powered by the Kirin 955 chipset, whereas the X21 UD utilizes the Snapdragon 660, with the latter offering more RAM at 6GB compared to the P9 Plus's 4GB.
- Both phones have a dual 12 MP rear camera setup, but the X21 UD has a wider aperture of f/1.8, which may enhance low-light performance.
- The P9 Plus has a 3400 mAh battery, slightly larger than the X21 UD's 3200 mAh, with both supporting 18W charging.
- Software-wise, the P9 Plus runs on Android 6, upgradable to 7, while the X21 UD operates on Android 8.1, providing a more recent software experience.
- Both devices have a premium build quality with Gorilla Glass and aluminum frames, but the P9 Plus includes NFC connectivity, which the X21 UD lacks.
Side-by-side Specification Comparison
Huawei P9 Plus
vivo X21 UD
General
Release Date
2016
2018
Announced
2016
2018
Description
Versions: VIE-L09 (Single SIM); VIE-L29 (Dual SIM)
N/A
Display
Size
5.5"
6.28"
Type
Super AMOLED
Super AMOLED
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 3
Performance
Chipset
Kirin 955 (16 nm)
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
Octa-core (4x2.5 GHz Cortex-A72 & 4x1.8 GHz Cortex-A53)
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
Mali-T880 MP4
Adreno 512
Memory
32GB 4GB RAM, 64GB 4GB RAM
128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
12 MP
12 MP
Main Camera Details
12 MP, f/2.2, 27mm (wide), 1/2.9", 1.25µm, PDAF12 MP B/W, f/2.2, 27mm (wide), 1/2.9", 1.25µm
12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.4, (depth)
Front Camera
8 MP
12 MP
Front Camera Details
8 MP, f/1.9, AF
12 MP, f/2.0, (wide), 1/2.8", 1.28µm
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3400 mAh
3200 mAh
Battery Details
Li-Po 3400 mAh, non-removable
Li-Ion 3200 mAh, non-removable
Charging Details
18W wired, 38% in 30 min
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
152.3 x 75.3 x 7 mm (6.00 x 2.96 x 0.28 in)
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
Weight
162 g
156.2 g
Materials
Glass front (Gorilla Glass 3), aluminum back, aluminum frame
Glass front (Gorilla Glass 3), aluminum back, aluminum frame
Water Resistance
N/A
N/A
Colors
Haze Gold, Quartz Grey, Ceramic White
Black, Ruby Red
Foldable
✗
✗
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
4.2, A2DP, LE
5.0, A2DP, LE
NFC
✓
✗
USB
USB Type-C
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS/ BDS (market dependant)
GPS, GLONASS
Software
Operating System
Android 6 (Marshmallow), upgradable to 7 (Nougat), EMUI 5
Android 8.1 (Oreo), Funtouch 4
OS Version
Android 6 (Marshmallow), upgradable to 7 (Nougat), EMUI 5
Android 8.1 (Oreo), Funtouch 4
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, optical), accelerometer, proximity, compass
Audio
Stereo Speakers
✓
✗
Loudspeaker
Yes, with stereo speakers
Yes
Audio Jack
Yes
Yes

