Category Breakdown
Acer Liquid X2
vivo Y91i
Performance
60.360.3
Camera
42.442.4
Display
70.570.5
Battery
51.051.0
Build
70.870.8
Overall
57.557.5
Summary
- The Acer Liquid X2 features a 5.5-inch IPS LCD display with a resolution of 720 x 1280 pixels, while the vivo Y91i has a larger 6.2-inch IPS LCD with a resolution of 720 x 1520 pixels, offering a slightly higher pixel density.
- In terms of performance, the Liquid X2 is powered by a Mediatek MT6753 chipset with 3GB RAM, whereas the Y91i uses a Qualcomm Snapdragon 439 with 2GB RAM, which may provide better efficiency.
- Both devices have a 13 MP rear camera capable of 1080p video recording, but the Y91i includes an additional 2 MP depth sensor for enhanced photography.
- The Liquid X2 has a slightly larger 4020 mAh battery compared to the Y91i's 4030 mAh, with both lacking fast charging.
- The Liquid X2 runs on Android 5.1, while the Y91i operates on a more recent Android 8.1 with Funtouch 4.5, potentially offering a better software experience.
Side-by-side Specification Comparison
Acer Liquid X2
vivo Y91i
General
Release Date
2016
2018
Announced
2015
2018
Description
N/A
Not to be confused with Vivo Y91i for India
Display
Size
5.5"
6.2"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6753 (28 nm)
Qualcomm SDM439 Snapdragon 439 (12 nm)
CPU
Octa-core 1.3 GHz Cortex-A53
Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
GPU
Mali-T720MP4
Adreno 505
Memory
32GB 3GB RAM
16GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDXC
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/1.8, AF
13 MP, f/2.2, PDAF2 MP, f/2.4, (depth)
Front Camera
13 MP
8 MP
Front Camera Details
13 MP, f/1.8, AF
8 MP, f/2.0
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
4020 mAh
4030 mAh
Battery Details
Li-Po 4020 mAh, removable
4030 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
153.3 x 78.8 x 8.5 mm (6.04 x 3.10 x 0.33 in)
155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
Weight
166 g
163.5 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, Gold
Starry Black, Ocean Blue, Red
Foldable
✗
✗
Connectivity
SIM
Triple SIM (Micro-SIM)
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, hotspot
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.0, A2DP, LE
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Software
Operating System
Android 5.1 (Lollipop)
Android 8.1 (Oreo), Funtouch 4.5
OS Version
Android 5.1 (Lollipop)
Android 8.1 (Oreo), Funtouch 4.5
Security
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

