Category Breakdown
vivo Y91i
ZTE nubia V18
Performance
61.268.8
Camera
19.119.1
Display
56.558.9
Battery
29.128.1
Build
0.20.2
Connectivity
49.552.6
Audio
8.98.9
Overall
31.933.7
Summary
- The vivo Y91i features a 6.2-inch IPS LCD display with a resolution of 720 x 1520 pixels, while the ZTE nubia V18 has a slightly smaller 6.01-inch IPS LCD with a higher resolution of 1080 x 2160 pixels, resulting in better pixel density.
- In terms of performance, the Y91i is powered by a Snapdragon 439 chipset with 2GB of RAM, whereas the nubia V18 utilizes a more capable Snapdragon 625 with 4GB of RAM, offering superior multitasking.
- Both phones have a 13 MP rear camera and an 8 MP front camera, but the Y91i includes a secondary depth sensor.
- The Y91i's battery capacity is 4030 mAh, slightly higher than the nubia V18's 4000 mAh, and both devices lack fast charging and wireless charging.
- The Y91i runs on Android 8.1 (Oreo) with Funtouch OS, while the nubia V18 initially operates on Android 7.1 (Nougat) but can be upgraded to Android 8.0 (Oreo).
Side-by-side Specification Comparison
vivo Y91i
ZTE nubia V18
General
Release Date
2018
2018
Announced
2018
2018
Description
Not to be confused with Vivo Y91i for India
N/A
Display
Size
6.2"
6.01"
Type
IPS LCD
IPS LCD
Resolution
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
1080 x 2160 pixels, 18:9 ratio (~402 ppi density)
PPI
720
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Qualcomm SDM439 Snapdragon 439 (12 nm)
Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU
Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Octa-core 2.0 GHz Cortex-A53
GPU
Adreno 505
Adreno 506
Memory
16GB 2GB RAM
64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (uses shared SIM slot)
Camera
Main Camera
13 MP, f/2.2, PDAF2 MP, f/2.4, (depth)
13 MP, f/2.2, PDAF
Main Camera Features
LED flash, panorama
LED flash, HDR, panorama
Front Camera
8 MP, f/2.0
8 MP, f/2.0
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4030 mAh
4000 mAh
Battery Details
4030 mAh, non-removable
Li-Po 4000 mAh, non-removable
Charging Details
N/A
Reverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
158.7 x 75.5 x 7.8 mm (6.25 x 2.97 x 0.31 in)
Weight
163.5 g
170 g
Materials
N/A
N/A
Colors
Starry Black, Ocean Blue, Red
Black, Gold, 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, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.2, A2DP, LE
4.1, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.1 (Oreo), Funtouch 4.5
Android 7.1 (Nougat), upgradable to Android 8.0 (Oreo)
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass

