Samsung DoubleTime I857 vs verykool s5021 Wave Pro
Compare recorded specifications, size and practical differences.
verykool s5021 Wave Pro
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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
DoubleTime I857: 20 g lighter
- DoubleTime I857:
- 148 g
- s5021 Wave Pro:
- 168 g
-
Width
DoubleTime I857: 11 mm narrower
- DoubleTime I857:
- 62 mm
- s5021 Wave Pro:
- 73 mm
-
Screen diagonal
DoubleTime I857: 1.8 in smaller diagonal
- DoubleTime I857:
- 3.2 in
- s5021 Wave Pro:
- 5 in
-
Chipset
- DoubleTime I857:
- Qualcomm MSM7230
- s5021 Wave Pro:
- Spreadtrum SC7731C
-
Depth
s5021 Wave Pro: 5.3 mm thinner
- DoubleTime I857:
- 15 mm
- s5021 Wave Pro:
- 9.7 mm
-
Height
DoubleTime I857: 32.8 mm shorter
- DoubleTime I857:
- 113 mm
- s5021 Wave Pro:
- 145.8 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. DoubleTime I857
- Height:
- 113 mm
- Width:
- 62 mm
- Depth:
- 15 mm +5.3 mm versus s5021 Wave Pro
2. s5021 Wave Pro
- Height:
- 145.8 mm +32.8 mm versus DoubleTime I857
- Width:
- 73 mm +11 mm versus DoubleTime I857
- Depth:
- 9.7 mm
Weight
Bars start at zero and share a scale within this chart.
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. DoubleTime I857
- Screen diagonal:
- 3.2 in
- Aspect ratio (height:width):
- 3:2
- Approximate rectangular screen area:
- 30.5 cm²
2. s5021 Wave Pro
- Screen diagonal:
- 5 in
- Aspect ratio (height:width):
- 16:9
- Approximate rectangular screen area:
- 68.9 cm²
s5021 Wave Pro has approximately 126% more rectangular screen area than DoubleTime I857.
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.
DoubleTime I857: Original memory entry
260 MB · 256 MB RAM
s5021 Wave Pro: Original memory entry
4 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. DoubleTime I857
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 32 GB (dedicated slot)
2. s5021 Wave Pro
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSD · up to 32 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.
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.
Everyday essentials
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Dimensions (HxWxD) |
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| Weight |
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| Technology |
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| Screen size |
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| Screen resolution |
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| Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. |
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| Memory card support |
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| Battery Capacity is not battery life. No endurance test is implied. |
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| Operating system OS |
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| Chipset |
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| Headphone jack |
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Display
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Touchscreen |
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| Display colors |
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| Screen area |
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| Screen format |
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| Screen to body ratio |
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| PPI /points per inch/ |
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Camera and Video
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Rear camera, main |
|
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| Camera specs |
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| Functions | Unknown |
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| Video |
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| Front camera, selfie |
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| Specifications | Unknown |
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Performance
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Processor CPU |
|
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| Graphics processor GPU |
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General specs
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Release date |
|
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| Colors |
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| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
Unknown |
| Battery life |
|
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Communication and Connectivity
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| SIM card |
|
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| Network |
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| Speed |
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| GPRS |
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| Edge |
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| Wi-Fi |
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| GPS |
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| USB |
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| Bluetooth |
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| Harmful irradiation |
|
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Music and Audio
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Radio |
|
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| Others |
|
Unknown |
Other features
| Specification | DoubleTime I857 | s5021 Wave Pro |
|---|---|---|
| Dop |
|
|