Allview X4 Xtreme vs Xiaomi Mi 8 Explorer: specs comparison

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Display technology

OLED versus LCD

X4 Xtreme:

LCD

Mi 8 Explorer:

OLED
Weight

Mi 8 Explorer: 49.9 g lighter

X4 Xtreme:

226.9 g

Mi 8 Explorer:

177 g
Width

Mi 8 Explorer: 8.5 mm narrower

X4 Xtreme:

83.3 mm

Mi 8 Explorer:

74.8 mm
Screen diagonal

X4 Xtreme: 0.21 in smaller diagonal

X4 Xtreme:

6 in

Mi 8 Explorer:

6.21 in
Chipset

X4 Xtreme:

Mediatek MT6757T Helio P25 (16 nm)

Mi 8 Explorer:

Qualcomm SDM845 Snapdragon 845 (10 nm)
Depth

Mi 8 Explorer: 1.5 mm thinner

X4 Xtreme:

9.1 mm

Mi 8 Explorer:

7.6 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. X4 Xtreme

Height:

166.4 mm +11.5 mm versus Mi 8 Explorer
Width:

83.3 mm +8.5 mm versus Mi 8 Explorer
Depth:

9.1 mm +1.5 mm versus Mi 8 Explorer
2. Mi 8 Explorer

Height:

154.9 mm
Width:

74.8 mm
Depth:

7.6 mm

Weight

Bars start at zero and share a scale within this chart.

1. X4 Xtreme

226.9 g

+49.9 g versus Mi 8 Explorer
2. Mi 8 Explorer

177 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

At least two phones need compatible screen dimensions for a drawing.

1. X4 Xtreme

Screen diagonal:

6 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

99.2 cm²
2. Mi 8 Explorer

Mi 8 Explorer: Screen geometry unavailable or conflicting.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for X4 Xtreme, Mi 8 Explorer, compared at the same storage capacity.
Storage	X4 Xtreme	Mi 8 Explorer
128 GB	Unknown	8 GB RAM

X4 Xtreme: Original memory entry

up to 64 GB (dedicated slot) · 512GB 4GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. X4 Xtreme

NFC:: See details Super AMOLED
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB (uses SIM 2 slot)

2. Mi 8 Explorer

NFC:: Yes
Headphone jack:: No
Memory card support:: No

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

1. X4 Xtreme

4550 mAh

+1550 mAh versus Mi 8 Explorer
2. Mi 8 Explorer

3000 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. X4 Xtreme2. Mi 8 Explorer

Everyday essentials

Everyday essentials — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Dimensions (HxWxD)	166.4 Х 83.3 Х 9.1 mm	154.9 Х 74.8 Х 7.6 mm
Weight	226.9 g	177 g
Technology	IPS LCD	Super AMOLED
Screen size	6" inch	6.21" inch
Screen resolution	1080 x 1920 px	1080 x 2248 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	up to 64 GB (dedicated slot) 512GB 4GB	128 GB 8 GB RAM
Memory card support	microSD up to 256 GB (uses SIM 2 slot)	No
Battery Capacity is not battery life. No endurance test is implied.	4550 mAh Non-removable Li-Po	3000 mAh Non-removable Li-Po
Operating system OS	Android 7.0 (Nougat)	Android 8.1 (Oreo) upgradable to Android 9.0 (Pie); MIUI 10.1
Chipset	Mediatek MT6757T Helio P25 (16 nm)	Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC	Super AMOLED	Yes
Headphone jack	Yes	No

Display

Display — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	99.2 cm2	97.1 cm2
Screen format	16:9 (height:width)	Unknown
Screen to body ratio	146.1 Х 71.6 Х 9.9 mm	83.8%
PPI /points per inch/	367 PPI	0 PPI
Screen protection	Corning Gorilla Glass 3	Corning Gorilla Glass 5

Camera and Video

Camera and Video — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Rear camera, main	13 MP Dual-LED flash	12 MP Dual
Camera specs	13 MP PDAF -5 MP (ultrawide/depth sensor)	12 MP f/1.8 1/2.55'' 1.4µm 4-axis OIS dual pixel PDAF -12 MP f/2.4 1/3.4'' 1.0µm AF 2x optical zoom
Functions	Dual-LED flash HDR panorama	Dual-LED flash HDR panorama
Video	1080p@30fps	1080p@30fps
Front camera, selfie	20 MP Single	20 MP Single
Specifications	20 MP	20 MP f/2.0 0.9μm

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Processor CPU	Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)	Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
Graphics processor GPU	Mali-T880MP2	Adreno 630
Antutu 7 score *	58758	Unknown

General specs

General specs — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Release date	2017 June	2018 May
Colors	Mocha Gold	Black (transparent back)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	Unknown	500 EUR
Battery life	Stand by time- Up to 379 h Talking time- Up to 25 h	Unknown
Body build	Unknown	Front/back glass aluminum frame (7000 series)

Communication and Connectivity

Communication and Connectivity — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
SIM card	Hybrid Dual SIM (Micro-SIM/Nano SIM)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 850 / 900 / 1900 / 2100-4G - LTE band 1(2100)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 17(700) 20(800) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA 21.1/5.76 Mbps LTE-A (2CA) Cat6 300/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A (4CA) Cat16 1024/150 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct DLNA hotspot
GPS	Yes with A-GPS	Yes with dual-band A-GPS GLONASS BDS GALILEO QZSS
USB	microUSB 2.0	Type-C 1.0 reversible connector
Bluetooth	4.0 A2DP EDR	5.0 A2DP LE aptX HD
Harmful irradiation	SAR EU - 1.01 W/kg (head)	Unknown

Music and Audio

Music and Audio — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Radio	FM radio	No
Others	Unknown	HDR10 -DCI-P3 Active noise cancellation with dedicated mic

Other features

Other features — specifications for X4 Xtreme, Mi 8 Explorer.
Specification	X4 Xtreme	Mi 8 Explorer
Dop	Sensors Fingerprint (front-mounted) Sensors Accelerometer gyro proximity compass - For Europe	Sensors Face ID fingerprint (under display) accelerometer gyro proximity barometer compass - Fast battery charging (Quick Charge 4.0+) - For China

Allview X4 Xtreme vs Xiaomi Mi 8 Explorer