Blackview BV4900S vs Xiaomi Redmi K30 Ultra

Blackview BV4900S

Xiaomi Redmi K30 Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 900, 2100

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 3, 7, 8, 20, 40

LTE frequency band 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 41, 78, 79; SA/NSA
HSDPA speed

42.2 Mbps

42 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE-A
5G speed

-

5G
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Polycarbonate, rubber, silicone

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

157.5 mm

163.3 mm
Width

78.1 mm

75.4 mm
Thickness

13.7 mm

9.1 mm
Weight

261 g

213 g
Waterproof

IP68

-
Dust proof

IP68

-
MIL-STD-810G

Yes

-
Colors

Black, Green, Orange, Yellow

Black, Green, White

Display
Display type

IPS TFT

AMOLED capacitive touchscreen
Physical size

5.7 inches

6.67 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

282 ppi

395 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Asahi Dragontrail glass

2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 5
Display features

-

HDR10+, 120Hz sampling rate, 500 nits typ. brightness

Main camera
Camera type

Single

Quad
Main camera

8 MP, f/2.4

64 MP, f/1.9 , 26 mm, 1/1.72" , 0.8 µm
13 MP, f/2.4 , 1.12 µm
5 MP, f/2.2 , 50 mm
2 MP, f/2.4
Primary camera resolution

3264 x 2448 pixels

5184 x 3800 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30/60/120/240/960fps; gyro-EIS
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW, AI skyscaping

Selfie camera
Selfie camera type

Single

Single
Selfie camera

5 MP, f/2.2 , 1/4" , 1.4 µm

20 MP, f/2.24 , 1/3.4" , 0.8 µm, 27 mm
Selfie camera resolution

2560 x 1920 pixels

5184 x 3800 pixels
Selfie camera features

Face unlock

-
Selfie camera video

720p@30fps

1080p@30fps, 720p@120fps

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

-

Yes
BDS

Yes

-
QZSS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, light, magnetometer, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity
Power bank function

-

Yes