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| Phone | Samsung Galaxy Fold | Samsung Galaxy S II / SGH-i777 | CAT S40 | AT&T Calypso |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
7.3" diag. 4 : 3 |
4.3" diag. 5 : 3 |
4.7" diag. 16 : 9 |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
1536 x 2152 pixels (~362 ppi) AMOLED |
480 x 800 pixels (~217 ppi) AMOLED |
540 x 960 pixels (~234 ppi) LCD (TFT/TFD) |
480 x 960 pixels (~195 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Battery | 4,380 mAh | 1,650 mAh | 3,000 mAh | 2,500 mAh |
| Processor | 2.8 GHz Qualcomm Snapdragon 855 | 1.2 GHz Samsung Exynos dual-core | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.5 GHz MediaTek MT6739 |
| RAM | 12 GB | ? | 1 GB | 1 GB |
| Storage | 512 GB | 16 GB | 16 GB | 16 GB |
| Main Camera | 12 megapixel | 8 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | 16 megapixel | - | - | - |
| Tele Camera | 12 megapixel | - | - | - |
| Video Capture | 4K UHD | 1080p HD | 1080p HD | 1080p HD |
| Front Camera | 10 megapixel | 2 megapixel | 2 megapixel | 5 megapixel |
| Weight |
9.74 oz (276g) |
4.3 oz (122g) |
6.53 oz (185g) |
6 oz (170g) |
| Dimensions |
6.33" x 2.47" x 0.67" (161 x 63 x 17 mm) |
4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm) |
5.7" x 2.87" x 0.49" (145 x 73 x 12.4 mm) |
5.91" x 2.87" x 0.39" (150 x 73 x 9.9 mm) |
| Platform / OS | Android | Android | Android | Android |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 46, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | LTE (Cat 18) | HSPA+ 21 | LTE (Cat 4) | LTE (Cat 4) |
| Features | ||||
| Barometer | Yes | - | - | - |
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
| Flashlight | Yes | - | Yes | Yes |
| Ruggedized | - | - | Yes | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| MirrorLink | Yes | - | - | - |
| NFC | Yes | Yes | Yes | - |
| USB |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 4 (802.11 a,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Data & Network | ||||
| Dual-SIM | Yes | - | - | - |
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| DLNA | - | Yes | - | - |
| TV Output | Yes | Yes | - | - |
| Power | ||||
| Fast Charging | Yes | - | - | - |
| Wireless Charging | Yes | - | - | - |
| Voice | ||||
| HD Voice | Yes | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung Galaxy Fold | Samsung Galaxy S II / SGH-i777 | CAT S40 | AT&T Calypso | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Fold | Samsung Galaxy S II / SGH-i777 | CAT S40 | AT&T Calypso |
