BLU J2 vs Samsung Galaxy S II Skyrocket HD I757
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.
-
Display technology
OLED versus LCD
- J2:
- LCD
- Galaxy S II Skyrocket HD I757:
- OLED
-
Screen diagonal
Galaxy S II Skyrocket HD I757: 0.35 in smaller diagonal
- J2:
- 5 in
- Galaxy S II Skyrocket HD I757:
- 4.65 in
-
Release year
- J2:
- 2019
- Galaxy S II Skyrocket HD I757:
- 2012
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. J2
- Height:
- 144 mm
- Width:
- 73.1 mm
- Depth:
- 10.3 mm
- Weight:
- 146 g
2. Galaxy S II Skyrocket HD I757
- Height:
- Unknown
- Width:
- Unknown
- Depth:
- Unknown
- Weight:
- Unknown
Unavailable dimensions are omitted from the drawing.
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. J2
- Screen diagonal:
- 5 in
- Aspect ratio (height:width):
- 16:9
- Approximate rectangular screen area:
- 68.9 cm²
2. Galaxy S II Skyrocket HD I757
- Screen diagonal:
- 4.65 in
- Aspect ratio (height:width):
- 16:9
- Approximate rectangular screen area:
- 59.6 cm²
J2 has approximately 15.6% more rectangular screen area than Galaxy S II Skyrocket HD I757.
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.
| Storage | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| 16 GB | Not recorded | 1 GB RAM |
| 32 GB | 1 GB RAM | Not recorded |
Practical features
Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.
1. J2
- NFC:
- Unknown
- Headphone jack:
- Yes
- Memory card support:
- See details microSDXC
2. Galaxy S II Skyrocket HD I757
- NFC:
- Yes
- 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.
At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.
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. J22. Galaxy S II Skyrocket HD I757
Everyday essentials
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Dimensions (HxWxD) |
|
|
| Weight |
|
|
| Technology |
|
|
| Screen size |
|
|
| Screen resolution |
|
|
| Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. |
|
|
| Memory card support |
|
|
| Battery Capacity is not battery life. No endurance test is implied. |
|
|
| Operating system OS |
|
|
| NFC | Unknown |
|
| Headphone jack |
|
|
Display
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Touchscreen |
|
|
| Display colors |
|
|
| Screen area |
|
|
| Screen format |
|
|
| Screen to body ratio |
|
Unknown |
| PPI /points per inch/ |
|
|
| Screen protection | Unknown |
|
Camera and Video
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Rear camera, main |
|
|
| Camera specs |
|
|
| Functions |
|
|
| Video |
|
|
| Front camera, selfie |
|
|
| Specifications |
|
|
Performance
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Processor CPU |
|
|
| Graphics processor GPU |
|
Unknown |
General specs
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Release date |
|
|
| Colors |
|
|
| Historical recorded price Legacy catalogue value; date unknown. Not a current offer. |
|
|
Communication and Connectivity
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| SIM card |
|
|
| Network |
|
|
| Speed |
|
|
| GPRS |
|
|
| Edge |
|
|
| Wi-Fi |
|
|
| GPS |
|
|
| USB |
|
|
| Bluetooth |
|
|
| Harmful irradiation | Unknown |
|
Music and Audio
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Radio |
|
Unknown |
| Others | Unknown |
|
Other features
| Specification | J2 | Galaxy S II Skyrocket HD I757 |
|---|---|---|
| Dop |
|
|
