Lava Z4 vs Ulefone Armor 3W

Network
2G network

GSM 900, 1800

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 900, 2100

HSDPA 850, 900, 1700, 1900, 2100; TD-SCDMA 1880-1920, 2010-2025 MHz
4G network

LTE frequency band 1, 3, 5, 8, 40, 41

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(850), 19(850), 20(800), 25(1900), 26(850), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE, Cat6 301 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic back, plastic frame

Polycarbonate, aluminium alloy, TPU
SIM

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

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

164.5 mm

164.8 mm
Width

75.8 mm

79.2 mm
Thickness

9 mm

18.15 mm
Weight

190 g

364 g
Waterproof

-

Yes, IP68, IP69K
Dust proof

-

Yes, IP68, IP69K
MIL-STD-810G

-

Yes
Colors

Blue, Red

Black, Orange

Display
Display type

IPS LCD

IPS capacitive touchscreen
Physical size

6.51 inches

5.7 inches
Resolution

720 x 1600 pixels

1080 x 2160 pixels
Pixel density

270 ppi

424 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen, Corning Gorilla Glass 3

Scratch resistant, Corning Gorilla Glass 5
Multitouch

-

Yes

Main camera
Camera type

Triple

-
Main camera

(wide) , 13 MP, f/1.9 , 1/3.0" , 1.12 µm

21 MP, f/1.8 , 1/2.4" , 1.127 µm
(ultrawide) , 5 MP
(depth) , 2 MP, f/2.4
Primary camera resolution

4160 x 3120 pixels

5312 x 3984 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

dual-LED 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, optical image stabilization, 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

(wide) , 16 MP, f/2.0 , 1/3.06" , 1.0 µm

8 MP, f/2.4 , 1/4" , 1.127 µm
Selfie camera resolution

4608 x 3456 pixels

3264 x 2448 pixels
Selfie camera features

Face unlock

-
Selfie camera video

1080p@30fps

1080p@30fps

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
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

Type-C 2.0

Type-C reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v4.1
Bluetooth A2DP

Yes

-
bluetooth LE

Yes

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes