verykool s4009 Crystal vs Xiaomi Redmi Note Prime

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.

  • Width

    s4009 Crystal: 12.7 mm narrower

    s4009 Crystal:
    66 mm
    Redmi Note Prime:
    78.7 mm
  • Screen diagonal

    s4009 Crystal: 1.5 in smaller diagonal

    s4009 Crystal:
    4 in
    Redmi Note Prime:
    5.5 in
  • Chipset

    s4009 Crystal:
    Mediatek MT6570 (28 nm)
    Redmi Note Prime:
    Qualcomm MSM8916 Snapdragon 410 (28 nm)
  • Depth

    Redmi Note Prime: 1.3 mm thinner

    s4009 Crystal:
    10.7 mm
    Redmi Note Prime:
    9.4 mm
  • Height

    s4009 Crystal: 27 mm shorter

    s4009 Crystal:
    127 mm
    Redmi Note Prime:
    154 mm
  • Release year

    s4009 Crystal:
    2017
    Redmi Note Prime:
    2015

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. s4009 Crystal

    Height:
    127 mm
    Width:
    66 mm
    Depth:
    10.7 mm +1.3 mm versus Redmi Note Prime
    Weight:
    Unknown
  2. 2. Redmi Note Prime

    Height:
    154 mm +27 mm versus s4009 Crystal
    Width:
    78.7 mm +12.7 mm versus s4009 Crystal
    Depth:
    9.4 mm
    Weight:
    185 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. s4009 Crystal

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Redmi Note Prime

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

Redmi Note Prime has approximately 83.1% more rectangular screen area than s4009 Crystal.

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 s4009 Crystal, Redmi Note Prime, compared at the same storage capacity.
Storages4009 CrystalRedmi Note Prime
16 GB Unknown 2 GB RAM
s4009 Crystal: Original memory entry

8 GB · 512 MB 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. s4009 Crystal

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

2. Redmi Note Prime

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. s4009 Crystal

    1200 mAh

  2. 2. Redmi Note Prime

    3100 mAh

    +1900 mAh versus s4009 Crystal

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. s4009 Crystal2. Redmi Note Prime

Everyday essentials
Everyday essentials — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Dimensions (HxWxD)
  • 127 Х 66 Х 10.7 mm
  • 154 Х 78.7 Х 9.4 mm
Weight
  • 0 g
  • 185 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 5.5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3100 mAh
  • Removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.4 (KitKat); MIUI 9.2
Chipset
  • Mediatek MT6570 (28 nm)
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 83.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 54.3%
  • 68.8%
PPI /points per inch/
  • 233 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • f/2.4
  • 13 MP
  • f/2.2
  • 28mm (wide)
  • AF
Functions
  • LED flash
  • panorama
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 720p
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance

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

Performance — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Processor CPU
  • Dual-core 1.3 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Adreno 306
Antutu 7 score *
  • 10257
Unknown
General specs
General specs — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Release date
  • 2017
  • June
  • 2015
  • December
Colors
  • Black/Gold
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 140 EUR
Battery life
  • Stand by time- Up to 150 h (3G) Talking time- Up to 4 h (3G)
  • Stand by time- Up to 775 h (3G) Talking time- Up to 38 h (3G) Music play - Up to 60 h
Communication and Connectivity
Communication and Connectivity — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
SIM card
  • Dual SIM (Mini-SIM/ Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 / 850 - SIM 1 & SIM 2 -3G - HSDPA 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.13 W/kg (head) 0.81 W/kg (body)
  • SAR - 0.50 W/kg (head)
Music and Audio
Music and Audio — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Radio
  • Stereo FM radio
  • Stereo FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for s4009 Crystal, Redmi Note Prime.
Specifications4009 CrystalRedmi Note Prime
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 30% in 30 min (Quick Charge 1.0)