Coolpad Cool S1 vs Lava Z25

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

    Z25: 20 g lighter

    Cool S1:
    168 g
    Z25:
    148 g
  • Width

    Z25: 3.7 mm narrower

    Cool S1:
    74.7 mm
    Z25:
    71 mm
  • Screen diagonal

    Z25: 0.5 in smaller diagonal

    Cool S1:
    5.5 in
    Z25:
    5 in
  • Chipset

    Cool S1:
    Qualcomm MSM8996 Snapdragon 821 (14 nm)
    Z25:
    Mediatek MT6737 (28 nm)
  • Depth

    Cool S1: 0.9 mm thinner

    Cool S1:
    7.5 mm
    Z25:
    8.4 mm
  • Height

    Z25: 8.2 mm shorter

    Cool S1:
    151.4 mm
    Z25:
    143.2 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. Cool S1

    Height:
    151.4 mm +8.2 mm versus Z25
    Width:
    74.7 mm +3.7 mm versus Z25
    Depth:
    7.5 mm
  2. 2. Z25

    Height:
    143.2 mm
    Width:
    71 mm
    Depth:
    8.4 mm +0.9 mm versus Cool S1

Weight

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

  1. 1. Cool S1

    168 g

    +20 g versus Z25

  2. 2. Z25

    148 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. Cool S1

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Z25

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

Cool S1 has approximately 21% more rectangular screen area than Z25.

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.

Cool S1: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

Z25: Original memory entry

16 GB · 2/3 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. Cool S1

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

2. Z25

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses SIM 2 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. Cool S1

    4070 mAh

    +1450 mAh versus Z25

  2. 2. Z25

    2620 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. Cool S12. Z25

Everyday essentials
Everyday essentials — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Dimensions (HxWxD)
  • 151.4 Х 74.7 Х 7.5 mm
  • 143.2 Х 71 Х 8.4 mm
Weight
  • 168 g
  • 148 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
  • 16 GB
  • 2/3 GB RAM
Memory card support
  • No
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4070 mAh
  • Non-removable Li-Po
  • 2620 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 6.0.1 (Marshmallow); eUI 5.8
  • Android 6.0 (Marshmallow)
Chipset
  • Qualcomm MSM8996 Snapdragon 821 (14 nm)
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 73.7%
  • 67.8%
PPI /points per inch/
  • 401 PPI
  • 294 PPI
Camera and Video

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

Camera and Video — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Rear camera, main
  • 16 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 16 MP
  • PDAF
  • f/2.0
  • 8 MP
  • f/2.0
  • 1/3.2''
  • 1.4µm
  • AF
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • 5 MP
  • 1/4''
  • 1.4µm
DxOMark Main Score * Unknown
  • 70
DxOMark Photo * Unknown
  • 74
DxOMark Video * Unknown
  • 62
Performance

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

Performance — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Processor CPU
  • Quad-core (2x2.35 GHz Kryo & 2x1.6 GHz Kryo)
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Adreno 530
  • Mali-T720MP2
Antutu 7 score * Unknown
  • 40152
GeekBench 4 Single Core *
  • 1818
Unknown
GeekBench 4 Multi-Core *
  • 3877
Unknown
GeekBench 4 RenderScript *
  • 7272
  • 1351
General specs
General specs — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Release date
  • 2016
  • December
  • 2017
  • March
Colors
  • Gold
  • Gold
  • Black/White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 420 EUR
  • 160 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Cool S1, Z25.
SpecificationCool S1Z25
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Speed
  • HSPA
  • LTE
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic -Harman Kardon sound enhancement
Unknown
Other features
Other features — specifications for Cool S1, Z25.
SpecificationCool S1Z25
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - Fast battery charging (Quick Charge 3.0)
  • Sensors Accelerometer
  • proximity - For India