Tecno Phantom 9
#2577
vivo X21 UD
#2702Category Breakdown
Tecno Phantom 9
vivo X21 UD
Performance
78.179.6
Camera
28.419.1
Display
80.282.8
Battery
26.625.7
Build
71.876.2
Connectivity
52.259.3
Audio
8.98.9
Overall
47.846.8
Summary
- The Tecno Phantom 9 features a 6.39-inch AMOLED display with a resolution of 1080 x 2340 pixels, while the vivo X21 UD has a slightly smaller 6.28-inch Super AMOLED display at 1080 x 2280 pixels.
- In terms of performance, the Phantom 9 is powered by a Mediatek Helio P35 chipset, whereas the X21 UD utilizes a Snapdragon 660, both with 6GB of RAM.
- The Phantom 9's camera setup includes a 16 MP main sensor and a 32 MP selfie camera, compared to the X21 UD's 12 MP rear camera and 12 MP front camera.
- The Phantom 9 has a 3500 mAh battery, which is larger than the X21 UD's 3200 mAh, but the latter supports 18W fast charging.
- Both devices run different versions of Android, with the Phantom 9 on Android 9.0 and the X21 UD on Android 8.1, impacting the software experience.
- Build quality differs slightly, as the Phantom 9 has a plastic frame while the X21 UD features an aluminum frame.
Side-by-side Specification Comparison
Tecno Phantom 9
vivo X21 UD
General
Release Date
2019
2018
Announced
2019
2018
Description
N/A
N/A
Display
Size
6.39"
6.28"
Type
AMOLED
Super AMOLED
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 3
Performance
Chipset
Mediatek MT6765 Helio P35 (12 nm)
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
PowerVR GE8320
Adreno 512
Memory
128GB 6GB RAM
128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
16 MP, f/1.8, PDAF8 MP, f/2.4, 13mm (ultrawide)2 MP, f/2.8, (depth)
12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF5 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
12 MP, f/2.0, (wide), 1/2.8", 1.28µm
Front Camera Features
HDR
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3500 mAh
3200 mAh
Battery Details
Li-Ion 3500 mAh, non-removable
Li-Ion 3200 mAh, non-removable
Charging Details
N/A
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
158.5 x 75.3 x 7.9 mm (6.24 x 2.96 x 0.31 in)
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
Weight
164.4 g
156.2 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front (Gorilla Glass 3), aluminum back, aluminum frame
Colors
Lapland Aurora
Black, Ruby Red
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 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, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 9.0 (Pie)
Android 8.1 (Oreo), Funtouch 4
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (under display, optical), accelerometer, proximity, compass