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| Phone | Samsung Galaxy Z Flip | HTC Merge | Samsung Galaxy Fold | ZTE Z221 | Samsung Galaxy A51 (4G) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
6.7" diag. 22 : 9 |
3.8" diag. 5 : 3 |
7.3" diag. 4 : 3 |
2" diag. 4 : 3 |
6.5" diag. 20 : 9 |
| Display Resolution & Type |
1080 x 2636 pixels (~425 ppi) AMOLED |
480 x 800 pixels (~246 ppi) LCD (TFT/TFD) |
1536 x 2152 pixels (~362 ppi) AMOLED |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~405 ppi) AMOLED |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 3,300 mAh | 1,400 mAh | 4,380 mAh | 900 mAh | 4,000 mAh |
| Processor | 3 GHz Qualcomm Snapdragon 855+ | 800 MHz Qualcomm S2 MSM7630 | 2.8 GHz Qualcomm Snapdragon 855 | ? | 2.3 GHz Samsung Exynos 9611 |
| RAM | 8 GB | ? | 12 GB | ? | 4 GB |
| Storage | 256 GB | ? raw hardware | 512 GB | 142 MB | 128 GB |
| Main Camera | 12 megapixel | 5 megapixel | 12 megapixel | Yes | 48 megapixel |
| Wide Camera | 12 megapixel | - | 16 megapixel | - | 12 megapixel |
| Tele Camera | - | - | 12 megapixel | - | - |
| Video Capture | 4K UHD | 720p HD | 4K UHD | QCIF (176 x 144) | 4K UHD |
| Front Camera | 10 megapixel | - | 10 megapixel | - | 32 megapixel |
| Weight |
6.46 oz (183g) |
6.98 oz (198g) |
9.74 oz (276g) |
3.24 oz (92g) |
6.07 oz (172g) |
| Dimensions |
3.44" x 2.9" x 0.68" (87 x 74 x 17.3 mm) |
4.74" x 2.43" x 0.59" (120 x 62 x 15 mm) |
6.33" x 2.47" x 0.67" (161 x 63 x 17 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
6.24" x 2.89" x 0.31" (158 x 73 x 7.9 mm) |
| Form Factor | Foldable | Slide | Foldable | Clamshell | Slab |
| Platform / OS | Android | Android | Android | (proprietary) | Android |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71 WCDMA: 2, 3, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
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: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 30, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 16) | EVDO rA | LTE (Cat 18) | HSDPA 3.6 | LTE (Cat 12) |
| Features | |||||
| Barometer | Yes | - | Yes | - | - |
| Fingerprint Reader |
Yes stand-alone |
- |
Yes stand-alone |
- |
Yes in-display (optical) |
| Flashlight | Yes | Yes | Yes | - | Yes |
| GPS / Location | n/a | n/a | n/a | Yes | n/a |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | - | Yes | Yes | - |
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| MirrorLink | Yes | - | Yes | - | Yes |
| Mobile Hotspot | n/a | n/a | n/a | - | n/a |
| NFC | Yes | - | Yes | - | Yes |
| USB |
Yes USB Type C |
Yes |
Yes USB Type C |
Yes |
Yes USB Type C |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | n/a | n/a | n/a | - | n/a |
| Ringer ID | n/a | n/a | n/a | - | n/a |
| Voice Dialing | n/a | n/a | n/a | - | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | n/a | n/a | n/a | - | n/a |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | - | - | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | n/a | Yes | n/a |
| Instant Messaging | n/a | n/a | n/a | Yes | n/a |
| MMS | n/a | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | Yes | - | - | Yes |
| Music Player | n/a | n/a | n/a | - | n/a |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| TV Output | Yes | - | Yes | - | - |
| Power | |||||
| Fast Charging | Yes | - | Yes | - | Yes |
| Wireless Charging | Yes | - | Yes | - | - |
| Productivity | |||||
| Alarm | n/a | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | n/a | Yes | n/a |
| Voice Memo | n/a | n/a | n/a | Yes | n/a |
| Software | |||||
| Games | n/a | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | n/a | Yes | n/a |
| Voice | |||||
| HD Voice | Yes | - | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung Galaxy Z Flip | HTC Merge | Samsung Galaxy Fold | ZTE Z221 | Samsung Galaxy A51 (4G) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Z Flip | HTC Merge | Samsung Galaxy Fold | ZTE Z221 | Samsung Galaxy A51 (4G) |
