Allview X4 Xtreme vs Spice Mi-425 Stellar

Compare recorded specifications, size and practical differences.

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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.

  • Weight

    Mi-425 Stellar: 116.9 g lighter

    X4 Xtreme:
    226.9 g
    Mi-425 Stellar:
    110 g
  • Width

    Mi-425 Stellar: 19.8 mm narrower

    X4 Xtreme:
    83.3 mm
    Mi-425 Stellar:
    63.5 mm
  • Screen diagonal

    Mi-425 Stellar: 2 in smaller diagonal

    X4 Xtreme:
    6 in
    Mi-425 Stellar:
    4 in
  • Depth

    X4 Xtreme: 3.4 mm thinner

    X4 Xtreme:
    9.1 mm
    Mi-425 Stellar:
    12.5 mm
  • Height

    Mi-425 Stellar: 41.4 mm shorter

    X4 Xtreme:
    166.4 mm
    Mi-425 Stellar:
    125 mm
  • Release year

    X4 Xtreme:
    2017
    Mi-425 Stellar:
    2012

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. 1. X4 Xtreme

    Height:
    166.4 mm +41.4 mm versus Mi-425 Stellar
    Width:
    83.3 mm +19.8 mm versus Mi-425 Stellar
    Depth:
    9.1 mm
  2. 2. Mi-425 Stellar

    Height:
    125 mm
    Width:
    63.5 mm
    Depth:
    12.5 mm +3.4 mm versus X4 Xtreme

Weight

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

  1. 1. X4 Xtreme

    226.9 g

    +116.9 g versus Mi-425 Stellar

  2. 2. Mi-425 Stellar

    110 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.

  1. 1. X4 Xtreme

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    99.2 cm²
  2. 2. Mi-425 Stellar

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

X4 Xtreme has approximately 117.9% more rectangular screen area than Mi-425 Stellar.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

X4 Xtreme: Original memory entry

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

Mi-425 Stellar: Original memory entry

149 MB

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-425 Stellar

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

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. 1. X4 Xtreme

    4550 mAh

    +2550 mAh versus Mi-425 Stellar

  2. 2. Mi-425 Stellar

    2000 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-425 Stellar

Everyday essentials
Everyday essentials — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Dimensions (HxWxD)
  • 166.4 Х 83.3 Х 9.1 mm
  • 125 Х 63.5 Х 12.5 mm
Weight
  • 226.9 g
  • 110 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 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
  • 149 MB
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4550 mAh
  • Non-removable Li-Po
  • 2000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 2.3 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
Chipset
  • Mediatek MT6757T Helio P25 (16 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 99.2 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 146.1 Х 71.6 Х 9.9 mm
  • 57.4%
PPI /points per inch/
  • 367 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • PDAF -5 MP
  • (ultrawide/depth sensor)
  • 5 MP
  • AF
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 20 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 20 MP
  • VGA
Performance

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

Performance — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Processor CPU
  • Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
  • 1.0 GHz
Graphics processor GPU
  • Mali-T880MP2
Unknown
Antutu 7 score *
  • 58758
Unknown
General specs
General specs — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Release date
  • 2017
  • June
  • 2012
  • June
Colors
  • Mocha Gold
  • white/black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 90 EUR
Battery life
  • Stand by time- Up to 379 h Talking time- Up to 25 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
SIM card
  • Hybrid Dual SIM (Micro-SIM/Nano SIM)
  • Mini-SIM
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 900 / 1800
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • hotspot
  • Wi-Fi 802.11 b/g
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • Yes
Harmful irradiation
  • SAR EU - 1.01 W/kg (head)
  • SAR EU - 0.36 W/kg (head)
Music and Audio
Music and Audio — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for X4 Xtreme, Mi-425 Stellar.
SpecificationX4 XtremeMi-425 Stellar
Dop
  • Sensors Fingerprint (front-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For Europe
  • Sensors Accelerometer
  • proximity
  • compass - MP4/WMV/H.263 player -MP3/WAV/AAC+ player -Organizer -Document viewer -Photo/video editor -Voice memo -Predictive text input