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Model

Compare BLU S1 and vivo U3x

BLU S1 vs vivo U3x

BLU S1

vivo U3x

BLU S1

vivo U3x

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800; CDMA 800
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 17(700), 25(1900), 26(850), 41(2500)

LTE frequency band 1, 3, 5, 8, 34, 38, 39, 40, 41
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
LTE speed

-

LTE, Cat12, 603 Mbps download, 102 Mbps upload
LTE-A speed

LTE-A, (2CA) Cat6, 300 Mbps download, 50 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2017-9

2019-09
Status

2017-9

2019-09

Design
Build

-

Plastic
SIM

Dual SIM (Micro-SIM)

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

147.3 mm

160 mm
Width

72.8 mm

76.7 mm
Thickness

8.4 mm

8.92 mm
Weight

137 g

191 g
Colors

Black, Gold

Black, Blue, Red

Display
Display type

IPS LCD capacitive touchscreen

IPS LCD
Physical size

5.2 inches

6.35 inches
Resolution

720 x 1280 pixels

720 x 1544 pixels
Pixel density

282 ppi

268 ppi
Display colors

16777216

16777216
Multitouch

Yes

-

Hardware
CPU

-

Octa-core
CPU

Octa-core 1.5 GHz

Quad-core 2.0 GHz Kryo 260
CPU(second)

quad-core 1.8 GHz Kryo 260
Chipset

Mediatek MT6750

Qualcomm Snapdragon 665
GPU

Mali-T860MP2

Adreno 610
Memory RAM

2 GB

3, 4 GB
Internal storage

16 GB

43, 64 GB
Memory card

microSD

microSD, microSDHC, microSDXC
Memory card max

64 GB

256 GB

OS
OS

Android 7.0 (Nougat)

Android 9.0 Pie, Funtouch 9.1 OS

Main camera
Camera type

-

Triple
Main camera

13 MP

13 MP, (wide) , f/2.2 , 1/1.7"
8 MP, f/2.2
(depth) , 2 MP, f/2.4
Primary camera resolution

-

4160 x 3120 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Geo-tagging, face detection, touch focus

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

Selfie camera
Selfie camera type

-

Single
Selfie camera

5 MP

16 MP, f/1.8
Selfie camera resolution

-

3264 x 2448 pixels
Selfie camera features

-

Face unlock
Selfie camera video

-

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Notifications

Vibration; MP3, WAV ringtones

-
Earpiece

-

Yes

Multimedia
Radio

-

FM Radio
Radio FM

FM radio

-

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Fingerprint (front-mounted), accelerometer, compass, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Ion
Battery capacity

2800 mAh

5000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

-

Pump Express
Talk time 2G

24 h

-
Talk time 3G

16 h

-
Standby time 2G

600 h

-
Standby time 3G

550 h

-

Tests and performance
Antutu

-

143000 (v8)
Geekbench(single-core)

-

320 (v5.2)
Geekbench(multi-core)

-

1381 (v5.2)

Cost
Price

-

170 USD

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