Category Breakdown
Acer Liquid Z630S
vivo Y91i
Performance
57.961.2
Camera
19.119.1
Display
56.556.5
Battery
28.129.1
Build
0.20.2
Connectivity
40.349.5
Audio
8.98.9
Overall
28.431.9
Summary
- The Acer Liquid Z630S 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 Z630S is powered by a Mediatek MT6753 chipset with 3GB of RAM, whereas the Y91i utilizes a Snapdragon 439 with 2GB of RAM, which may provide better efficiency.
- The camera setup on the Y91i includes a 13 MP rear camera with a depth sensor, compared to the Z630S's 8 MP rear camera, giving the Y91i an advantage in versatility.
- Both devices have similar battery capacities, with the Z630S at 4000 mAh and the Y91i at 4030 mAh, but neither supports fast charging.
- The Z630S runs on Android 5.1, while the Y91i operates on a more recent Android 8.1, offering a more updated software experience.
Side-by-side Specification Comparison
Acer Liquid Z630S
vivo Y91i
General
Release Date
2015
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
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-T720MP3
Adreno 505
Memory
32GB 3GB RAM
16GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC
Camera
Main Camera
8 MP, AF
13 MP, f/2.2, PDAF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, panorama
Front Camera
8 MP
8 MP, f/2.0
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4000 mAh
4030 mAh
Battery Details
Li-Po 4000 mAh, removable (15.2 Wh)
4030 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
156.3 x 77.5 x 8.9 mm (6.15 x 3.05 x 0.35 in)
155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
Weight
165 g
163.5 g
Materials
N/A
N/A
Colors
Black, Gold
Starry Black, Ocean Blue, Red
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
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
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 5.1 (Lollipop)
Android 8.1 (Oreo), Funtouch 4.5
Fingerprint
✗
✓
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity, compass

