Category Breakdown
vivo Y91i
ZTE nubia V18
Performance
60.362.5
Camera
42.442.4
Display
70.570.5
Battery
51.051.0
Build
70.870.8
Overall
57.558.2
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
Peak Brightness
N/A
N/A
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
13 MP
Main Camera Details
13 MP, f/2.2, PDAF2 MP, f/2.4, (depth)
13 MP, f/2.2, PDAF
Front Camera
8 MP
8 MP
Front Camera Details
8 MP, f/2.0
8 MP, f/2.0
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW 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 & Design
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
Water Resistance
N/A
N/A
Colors
Starry Black, Ocean Blue, Red
Black, Gold, Red
Foldable
✗
✗
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
Software
Operating System
Android 8.1 (Oreo), Funtouch 4.5
Android 7.1 (Nougat), upgradable to Android 8.0 (Oreo)
OS Version
Android 8.1 (Oreo), Funtouch 4.5
Android 7.1 (Nougat), upgradable to Android 8.0 (Oreo)
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

