Xiaomi Mi 4 vs Vivo Y28 4G
Product
Price
160 USD
160 USD
Status
Discontinued
Available
Brand
Xiaomi Mobiles
Vivo Mobiles
Model No
Mi 4
Vivo Y28 4G
Launch Date
2015, April 15
2024, July 31
Wikipedia
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
HSDPA 850 / 1900 / 2100
TD-SCDMA
HSDPA 850 / 900 / 2100
4G bands
3, 7, 38, 39, 40, 41
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed
HSPA, LTE Cat4 150/50 Mbps
HSPA, LTE
Dimensions
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)
165.7 x 76 x 8 mm (6.52 x 2.99 x 0.31 in)
Weight
149 g (5.26 oz)
199 g (7.02 oz)
Colors
Dark Gray, Black, White, Yellow, Blue, Pink
Agate Green, Gleaming Orange
Build
Glass front, plastic frame, plastic back
IP64 dust/water resistant
Notification LED round light on the back
SIM
Hybrid Dual SIM (Nano-SIM, dual stand-by)
Size
5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio)
6.68 inches, 107.4 cm2 (~85.3% screen-to-body ratio)
Resolution
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
720 x 1608 pixels, 20:9 ratio (~264 ppi density)
Type
IPS LCD, 90Hz, 760 nits (typ), 1000 nits (HBM)
Chipset
Qualcomm MSM8974AC Snapdragon 801 (28 nm)
Mediatek Helio G85 (12 nm)
CPU
Quad-core 2.5 GHz Krait 400
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
OS
Android 14, Funtouch 14
GPU
Mali-G52 MC2
RAM
2GB/3GB
4GB/6GB/8GB
Storage
16GB,
eMMC 5.0
128GB/256GB
Card Slot
No
microSDXC (uses shared SIM slot)
Lens 1
13 MP, f/2.0, AF
50 MP, f/1.8, (wide), PDAF
Features
Dual-LED dual-tone flash, panorama, HDR
LED flash
Video
1080p@30fps, 480p@120fps
1080p@30fps
Lens 2
2 MP, f/2.4, (depth)
Lens 1
5 MP, f/1.8
8 MP, f/2.1, (wide)
Video
1080p@30fps
Capacity
Li-Ion 3120 mAh, non-removable
6000 mAh, non-removable
Charging
Charging 10W, 40% in 60 min (advertised)
Quick Charge
Talk Time
Up to 35 h (3G)
44W wired
Sensors
Accelerometer, gyro, proximity, compass, barometer
Fingerprint (side-mounted), accelerometer, proximity, compass
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
Yes
Yes
24-bit/192kHz Hi-Res audio
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth
4.1, A2DP
5.0, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, BDS
GPS, GALILEO, GLONASS, BDS, QZSS
Radio
Stereo FM radio
FM radio
USB
microUSB 2.0, USB On-The-Go
USB Type-C 2.0, OTG
Performance
Basemark X: 4875
Display
Contrast ratio: 1055:1 (nominal), 2.641 (sunlight)
Camera
Photo / Video
Loudspeaker
Voice 63dB / Noise 65dB / Ring 68dB
Battery life
Endurance rating 67h