O2 XDA Serra vs verykool SL4502 Fusion II

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

    SL4502 Fusion II: 58 g lighter

    XDA Serra:
    165 g
    SL4502 Fusion II:
    107 g
  • Width

    XDA Serra: 14.2 mm narrower

    XDA Serra:
    51 mm
    SL4502 Fusion II:
    65.2 mm
  • Screen diagonal

    XDA Serra: 1.7 in smaller diagonal

    XDA Serra:
    2.8 in
    SL4502 Fusion II:
    4.5 in
  • Chipset

    XDA Serra:
    Qualcomm MSM7201A
    SL4502 Fusion II:
    Mediatek MT6735M (28 nm)
  • Depth

    SL4502 Fusion II: 9.1 mm thinner

    XDA Serra:
    18.1 mm
    SL4502 Fusion II:
    9 mm
  • Height

    XDA Serra: 37.9 mm shorter

    XDA Serra:
    102 mm
    SL4502 Fusion II:
    139.9 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. 1. XDA Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +9.1 mm versus SL4502 Fusion II
  2. 2. SL4502 Fusion II

    Height:
    139.9 mm +37.9 mm versus XDA Serra
    Width:
    65.2 mm +14.2 mm versus XDA Serra
    Depth:
    9 mm

Weight

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

  1. 1. XDA Serra

    165 g

    +58 g versus SL4502 Fusion II

  2. 2. SL4502 Fusion II

    107 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. XDA Serra

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. SL4502 Fusion II

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

SL4502 Fusion II has approximately 129.9% more rectangular screen area than XDA Serra.

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 XDA Serra, SL4502 Fusion II, compared at the same storage capacity.
StorageXDA SerraSL4502 Fusion II
8 GB Unknown 1 GB RAM
XDA Serra: Original memory entry

288 MB RAM · 512 MB ROM

Practical features

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

1. XDA Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. SL4502 Fusion II

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

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. XDA Serra

    1340 mAh

  2. 2. SL4502 Fusion II

    1800 mAh

    +460 mAh versus XDA Serra

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. XDA Serra2. SL4502 Fusion II

Everyday essentials
Everyday essentials — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Dimensions (HxWxD)
  • 102 Х 51 Х 18.1 mm
  • 139.9 Х 65.2 Х 9 mm
Weight
  • 165 g
  • 107 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 4.5" inch
Screen resolution
  • 480 x 640 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 288 MB RAM
  • 512 MB ROM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1340 mAh
  • Removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 5.1 (Lollipop)
Chipset
  • Qualcomm MSM7201A
  • Mediatek MT6735M (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 55.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 46.7%
  • 61.2%
PPI /points per inch/
  • 286 PPI
  • 218 PPI
Screen protection Unknown
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA videocall camera
  • 5 MP
Performance
Performance — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Processor CPU
  • 528 MHz ARM 11
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 130
  • Mali-T720MP2
General specs
General specs — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Release date
  • 2008
  • July
  • 2015
  • December
Colors
  • Black
  • Black
  • White
Battery life
  • Stand by time- Up to 406 h Talking time- Up to 8 h
  • Stand by time- Up to 240 h (3G) Talking time- Up to 7 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
SIM card
  • Mini-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.67 W/kg (head) 0.89 W/kg (body)
Music and Audio
Music and Audio — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Radio
  • Stereo FM radio
  • RDS
  • Stereo FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Serra, SL4502 Fusion II.
SpecificationXDA SerraSL4502 Fusion II
Dop
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity