BLU F91 vs Motorola Razr 40

Network
2G network

GSM 850, 900, 1800, 1900

GSM 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 850, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 2, 4, 5, 12, 13, 17, 25, 26, 41, 66, 71

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66 - global version; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - North America
5G network

5G band 2, 5, 25, 41, 66, 71, 77 SA/NSA/Sub6

5G band 1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - global version; 1, 2, 3, 5, 7, 12, 14, 20, 25, 26, 28, 29, 30, 41, 48, 66, 70, 71, 77, 78 SA/NSA/Sub6 - North America
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE

LTE-A (CA)
GPRS

No

Yes
EDGE

Yes

Yes

Design
Build

-

Plastic front (opened), plastic front (closed), plastic back, aluminum frame (7000 series), hinge (stainless steel)
SIM

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

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

168.7 mm

88.2 mm
Width

76.8 mm

74 mm
Thickness

8.9 mm

15.8 mm
Height unfolded

-

170.8 mm
Width unfolded

-

74 mm
Thickness unfolded

-

7.4 mm
Weight

209 g

188.6 g
Waterproof

-

Water-repellent coating
Colors

Blue

Grape Compote, Sage Green, Summer Lilac, Vanilla Cream

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm, 30x digital zoom

(wide) , 64 MP, f/1.7 , 0.7 µm
(ultrawide) , 5 MP, f/2.2 , 115˚

(ultrawide) , 13 MP, f/2.2 , 120˚ , 1/1.3" , 1.12 µm
(macro) , 2 MP, f/2.4
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

9280 x 6920 pixels
Primary camera video

4K@30fps, 1080p@30fps

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

LED flash

LED flash
Camera features

-

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n, 802.11ac

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

Yes
WLAN WiFi Dual Band

-

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

-
Bluetooth

v5.1

v5.3
Bluetooth A2DP

Yes

Yes
bluetooth LE

LE

Yes
Bluetooth EDR

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer (USA only), compass, fingerprint, gyroscope, proximity