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Model

Compare BLU S91 and HTC U23

BLU S91 vs HTC U23

BLU S91

HTC U23

BLU S91

HTC U23

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 12, 13, 17, 28, 66

LTE frequency band 1, 3, 5, 7, 8, 12, 17, 20, 28, 38, 39, 40, 41
5G network

-

5G band 1, 3, 7, 20, 28, 41, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2022-06

2023-07
Status

2022-06

2023-07

Design
Build

-

Metal, glass
SIM

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

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

164.8 mm

166.6 mm
Width

76.3 mm

77.1 mm
Thickness

8.9 mm

8.9 mm
Weight

202 g

202 g
Waterproof

-

IP67 (1.5m for 30 mins)
Dust proof

-

IP67
Colors

Black, Green

Blue, Violet

Display
Display type

IPS LCD

OLED
Physical size

6.5 inches

6.7 inches
Resolution

720 x 1600 pixels

1080 x 2400 pixels
Pixel density

270 ppi

393 ppi
Display colors

16777216

16777216
Protection

-

Corning Gorilla Glass Victus
Display features

-

120Hz

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.0 GHz Cortex-A53

Single-core 2.4 GHz Cortex-A710
CPU(second)

quad-core 1.5 GHz Cortex-A53

Triple-core 2.36 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-A510
Chipset

-

Qualcomm SM7450-AB Snapdragon 7 Gen 1
GPU

-

Adreno 644
Memory RAM

4 GB

8 GB
Internal storage

128 GB

128 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

256 GB

-

OS
OS

Android 11

Android 13

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 13 MP

(wide) , 64 MP, f/1.9
(macro) , 0.3 MP, f/2.4

(ultrawide) , 8 MP, f/2.4 , 120˚ , 1/4.0" , 1.12 µm
(depth) , 0.3 MP, f/2.4

(depth) , 2 MP, f/2.4
Primary camera resolution

-

9280 x 6920 pixels
Primary camera video

1080p@30fps

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

LED flash

dual-LED flash
Camera features

-

Autofocus, digital zoom, digital 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

Selfie camera
Selfie camera type

-

Single
Selfie camera

13 MP

32 MP, (wide) , f/2.5 , 1/2.8" , 0.8 µm
Selfie camera resolution

-

6560 x 4928 pixels
Selfie camera features

-

Face unlock, face detection, HDR
Selfie camera video

1080p@30fps

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

No

Connectivity
WLAN

Wi-Fi 802.11a, 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

Yes
WLAN WiFi Dual Band

-

Yes
USB

Type-C 2.0

Type-C 3.0
USB On-The-Go

Yes

-
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Ion
Battery capacity

5000 mAh

4600 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

-

Yes, 30W
Reverse charging

-

Yes
Wireless reverse charging

-

Yes, 5W
Fast wireless charging

-

Qi, 15W

Cost
Price

180 USD

490 USD

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