Category Breakdown
vivo Z3x
Xiaomi Mi 4i
Performance
62.560.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
79.879.8
Overall
58.057.3
Summary
- The vivo Z3x features a larger 6.26-inch IPS LCD display with a higher resolution of 1080 x 2280 pixels, compared to the Xiaomi Mi 4i's 5.0-inch display at 1080 x 1920 pixels.
- In terms of performance, the Z3x is powered by the Snapdragon 660 chipset, offering better processing capabilities than the Mi 4i's Snapdragon 615.
- Both phones have a 13 MP rear camera, but the Z3x includes a 16 MP front camera, significantly outperforming the Mi 4i's 5 MP selfie camera.
- The Z3x has a slightly larger battery capacity at 3260 mAh versus the Mi 4i's 3120 mAh, although the latter supports faster charging at 10W.
- Build quality is comparable, with the Z3x using a glass front and plastic back, while the Mi 4i features Gorilla Glass on the front.
- Finally, the Z3x runs on Android 9.0 with Funtouch 9, whereas the Mi 4i operates on an older Android 5.0.2 with MIUI 8.2.
Side-by-side Specification Comparison
vivo Z3x
Xiaomi Mi 4i
General
Release Date
2019
2015
Announced
2019
2015
Description
N/A
N/A
Display
Size
6.26"
5"
Type
IPS LCD
IPS LCD
Resolution
1080 x 2280 pixels, 19:9 ratio (~403 ppi density)
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
Corning scratch-resistant glass
Performance
Chipset
Qualcomm SDM660 Snapdragon 660 (14 nm)
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
Adreno 512
Adreno 405
Memory
64GB 4GB RAM, 64GB 6GB RAM
16GB 2GB RAM, 32GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
No
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/2.2, PDAF2 MP, f/2.4, (depth)
13 MP, f/2.0, AF
Front Camera
16 MP
5 MP
Front Camera Details
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
5 MP, f/1.8
Video Recording
1080p@30fps
1080p@30fps, 480p@120fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3260 mAh
3120 mAh
Battery Details
Li-Ion 3260 mAh, non-removable
Li-Ion 3120 mAh, non-removable
Charging Details
N/A
10W wired, QC1
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
154.8 x 75 x 7.9 mm (6.09 x 2.95 x 0.31 in)
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in)
Weight
150 g
130 g
Materials
Glass front, plastic back, plastic frame
Glass front (Gorilla Glass), plastic back, plastic frame
Water Resistance
N/A
N/A
Colors
Black, Red, Aurora
Dark Gray, Black, White, Yellow, Blue, Pink
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
HSPA, LTE Cat4 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE
4.1, A2DP
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 9.0 (Pie), Funtouch 9
Android 5.0.2 (Lollipop), MIUI 8.2
OS Version
Android 9.0 (Pie), Funtouch 9
Android 5.0.2 (Lollipop), MIUI 8.2
Security
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

