You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.<

Allview E4 Lite vs vivo X21

Compare recorded specifications, size and practical differences.

vivo X21

vivo X21

Replace X21
Remove X21
+ Add a third phone

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 technologyOLED versus LCDE4 Lite: LCD · X21: OLED
  • WidthE4 Lite: 4.6 mm narrowerE4 Lite: 70.2 mm · X21: 74.8 mm
  • Screen diagonalE4 Lite: 0.78 in smaller diagonalE4 Lite: 5.5 in · X21: 6.28 in
  • ChipsetMediatek MT6735 (28 nm) / Qualcomm SDM660 Snapdragon 660 (14 nm)E4 Lite: Mediatek MT6735 (28 nm) · X21: Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layoutSingle / DualE4 Lite: Single · X21: Dual
  • DepthX21: 1.2 mm thinnerX21: 7.4 mm · E4 Lite: 8.6 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.

Front
E4 Lite: 140.7 × 70.2 mm 1 X21: 154.5 × 74.8 mm 2
Side
E4 Lite: 140.7 × 8.6 mm 1 X21: 154.5 × 7.4 mm 2
  1. 1. E4 Lite
    Height
    140.7 mm
    Width
    70.2 mm
    Depth
    8.6 mm+1.2 mm versus X21
    Weight
    Unknown
  2. 2. X21
    Height
    154.5 mm+13.8 mm versus E4 Lite
    Width
    74.8 mm+4.6 mm versus E4 Lite
    Depth
    7.4 mm
    Weight
    156.2 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. 1. E4 Lite Screen geometry unavailable or conflicting
  2. 2. X21 6.28 in · 19:9 About 98.4 cm² rectangular area

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 by storage capacity and phone
StorageE4 LiteX21
8 GB 1 GB RAM Not recorded
64 GB Not recorded 6 GB RAM
128 GB Not recorded 6 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. E4 Lite

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

2. X21

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

Battery capacity

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

Recorded capacity

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

  1. 1. E4 Lite2100 mAh
  2. 2. X213200 mAh

    +1100 mAh versus E4 Lite

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. E4 Lite2. X21

Everyday essentials
Everyday essentials
SpecificationE4 LiteX21
Dimensions (HxWxD)
  • 140.7 Х 70.2 Х 8.6 mm
  • 154.5 Х 74.8 Х 7.4 mm
Weight
  • up to 128 GB (uses shared SIM slot)
  • 156.2 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 5.5" inch
  • 6.28" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 2280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Po
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 8.1 (Oreo); Funtouch 4
Chipset
  • Mediatek MT6735 (28 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationE4 LiteX21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 68.9 cm2
  • 98.4 cm2
Screen format
  • 16:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 143.5 Х 69.8 Х 8 mm
  • 85.2%
PPI /points per inch/
  • 294 PPI
  • 402 PPI
Camera and Video
Camera and Video
SpecificationE4 LiteX21
Rear camera, main
  • 13 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 13 MP
  • AF
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -5 MP
  • f/2.4
  • depth sensor
Functions
  • Dual-LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 12 MP
  • Single
Specifications
  • 5 MP
  • 12 MP
  • f/2.0
Performance
Performance
SpecificationE4 LiteX21
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Mali-T720MP2
  • Adreno 512
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 23456
  • 143728
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 1806
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 4240
General specs
General specs
SpecificationE4 LiteX21
Release date
  • 2015
  • September
  • 2018
  • March
Colors
  • Black
  • White
  • Black
  • Aurora White
  • Ruby Red
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer. Unknown
  • 450 EUR
Battery life
  • Stand by time- Up to 210 h Talking time- Up to 10 h
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity
SpecificationE4 LiteX21
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 2(1900)
  • 3(1800)
  • 20(800)
  • 38(2600)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 1.27 W/kg (head)
Unknown
Music and Audio
Music and Audio
SpecificationE4 LiteX21
Radio
  • FM radio
  • FM radio
Others Unknown
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features
SpecificationE4 LiteX21
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging