Allview X4 Xtreme vs Nokia Lumia 1520

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

    Lumia 1520: 17.9 g lighter

    X4 Xtreme:
    226.9 g
    Lumia 1520:
    209 g
  • Width

    X4 Xtreme: 2.1 mm narrower

    X4 Xtreme:
    83.3 mm
    Lumia 1520:
    85.4 mm
  • Chipset

    X4 Xtreme:
    Mediatek MT6757T Helio P25 (16 nm)
    Lumia 1520:
    Qualcomm MSM8974 Snapdragon 800 (28 nm)
  • Height

    Lumia 1520: 3.6 mm shorter

    X4 Xtreme:
    166.4 mm
    Lumia 1520:
    162.8 mm
  • Release year

    X4 Xtreme:
    2017
    Lumia 1520:
    2013

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 +3.6 mm versus Lumia 1520
    Width:
    83.3 mm
    Depth:
    9.1 mm
  2. 2. Lumia 1520

    Height:
    162.8 mm
    Width:
    85.4 mm +2.1 mm versus X4 Xtreme
    Depth:
    8.7 mm

Weight

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

  1. 1. X4 Xtreme

    226.9 g

    +17.9 g versus Lumia 1520

  2. 2. Lumia 1520

    209 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. Lumia 1520

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    99.2 cm²

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

Lumia 1520: Original memory entry

16 GB (RM-940 only)/32 GB · 2 GB RAM

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. Lumia 1520

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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

    +1150 mAh versus Lumia 1520

  2. 2. Lumia 1520

    3400 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. Lumia 1520

Everyday essentials
Everyday essentials — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Dimensions (HxWxD)
  • 166.4 Х 83.3 Х 9.1 mm
  • 162.8 Х 85.4 Х 8.7 mm
Weight
  • 226.9 g
  • 209 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6" inch
  • 6" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 1920 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
  • 16 GB (RM-940 only)/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4550 mAh
  • Non-removable Li-Po
  • 3400 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Microsoft Windows Phone 8
  • upgradable to Windows 10
Chipset
  • Mediatek MT6757T Helio P25 (16 nm)
  • Qualcomm MSM8974 Snapdragon 800 (28 nm)
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 99.2 cm2
  • 99.2 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 146.1 Х 71.6 Х 9.9 mm
  • 71.4%
PPI /points per inch/
  • 367 PPI
  • 367 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 2
Camera and Video
Camera and Video — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 20 MP
  • Single
Camera specs
  • 13 MP
  • PDAF -5 MP
  • (ultrawide/depth sensor)
  • 20 MP
  • f/2.4
  • 26mm (wide)
  • 1/2.5''
  • 1.12µm
  • OIS
  • AF
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • Zeiss optics
  • Dual-LED flash
  • panorama
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 1.2 MP
  • Single
Specifications
  • 20 MP
  • 1.2 MP
  • f/2.4
Performance

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

Performance — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Processor CPU
  • Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
  • Quad-core 2.2 GHz Krait 400
Graphics processor GPU
  • Mali-T880MP2
  • Adreno 330
Antutu 7 score *
  • 58758
  • 25197
General specs
General specs — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Release date
  • 2017
  • June
  • 2013
  • October
Colors
  • Mocha Gold
  • Yellow
  • White
  • Black
  • Red
  • green (AT&T)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 350 EUR
Battery life
  • Stand by time- Up to 379 h Talking time- Up to 25 h
  • Stand by time- Up to 768 h (2G) / Up to 768 h (3G) Talking time- Up to 27 h 40 min (2G) / Up to 25 h (3G) Music play - Up to 124 h
Communication and Connectivity
Communication and Connectivity — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
SIM card
  • Hybrid Dual SIM (Micro-SIM/Nano SIM)
  • Nano-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 850 / 900 / 1800 / 1900 - all versions -3G - HSDPA 850 / 900 / 1900 / 2100 - RM-937
  • RM-939
  • RM-940 HSDPA 850 / 900 / 1700 / 1900 / 2100 - RM-938 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - RM-937 LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 17(700) - RM-938
  • RM-940
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Up to 236.8 kbps
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.0
  • A2DP
  • EDR
  • LE/ aptX after WP8 Denim update
Harmful irradiation
  • SAR EU - 1.01 W/kg (head)
  • SAR EU - 0.64 W/kg (head) 0.20 W/kg (body)
Music and Audio
Music and Audio — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Radio
  • FM radio
  • FM radio
Others Unknown
  • ClearBlack display
  • Dolby Headphone -Active noise cancellation with dedicated mic
Other features
Other features — specifications for X4 Xtreme, Lumia 1520.
SpecificationX4 XtremeLumia 1520
Dop
  • Sensors Fingerprint (front-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For Europe
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • sensor core - Qi wireless charging - RM-937 global version RM-938 US version RM-939 WCDMA HSPA+ version RM-940 AT&T version