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|  |  |  |  | |
| Phone | ZTE Concord II | Samsung SPH-i550 | HTC One M9 (GSM) | LG K4 / Optimus Zone 3 / Rebel | 
| Current U.S. Carriers | (none) | (none) | (none) | (none) | 
| Global Availability | Released | Not yet released | Released | Released | 
| Specifications | ||||
|---|---|---|---|---|
| Display Size | 4" diag. 5 : 3 | ? | 5" diag. 16 : 9 | 4.5" diag. 16 : 9 | 
| Display Resolution & Type | 480 x 800 pixels (~233 ppi) LCD (TFT/TFD) | 320 x 320 pixels LCD (TFT/TFD) | 1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD) | 480 x 854 pixels (~218 ppi) LCD (TFT/TFD) | 
| Display Refresh | 60 Hz | ? | 60 Hz | 60 Hz | 
| Battery | 1,820 mAh | ? | 2,840 mAh | 1,940 mAh | 
| Processor | 1.2 GHz Qualcomm MSM8210 | 200 MHz Motorola MX-1 | 2 GHz Qualcomm Snapdragon 810 (MSM8994) | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 
| RAM | 1 GB | ? | 3 GB | 1.5 GB | 
| Storage | 4 GB | ? raw hardware | 32 GB | 16 GB * | 
| Main Camera | 5 megapixel | 1 megapixel | 20 megapixel | 5 megapixel | 
| Wide Camera | - | - | - | - | 
| Tele Camera | - | - | - | - | 
| Video Capture | 720p HD | ? | 4K UHD | 720p HD | 
| Front Camera | - | - | 4 megapixel | 2 megapixel | 
| Weight | 4.4 oz (125g) | ? | 5.54 oz (157g) | 3.99 oz (113g) | 
| Dimensions | 4.96" x 2.56" x 0.42" (126 x 65 x 10.7 mm) | 3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm) | 5.69" x 2.74" x 0.38" (145 x 70 x 9.6 mm) | 5.19" x 2.62" x 0.35" (132 x 67 x 8.9 mm) | 
| Platform / OS | Android | Palm OS | Android | Android | 
| Network Bands | WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 | CDMA: 850, 1900 AMPS: 850 | ||
| Data Technology | HSPA+ 21 | 1xRTT | LTE (Cat 9) | LTE (Cat 3) | 
| Features | ||||
| Flashlight | - | - | Yes | Yes | 
| Water-Resistant | - | - | Yes IPX3 (falling spray) | - | 
| Accessibility | ||||
| Hearing Aid Compatible | Yes | - | Yes | Yes | 
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | 
| Alerts | ||||
| Extra Display | - | Yes | - | - | 
| Connectivity | ||||
| Bluetooth | Yes Classic Audio | - | Yes Classic Audio | Yes Classic Audio | 
| Infrared (IR) | - | Yes | - | - | 
| NFC | - | - | Yes | - | 
| USB | Yes Micro-USB | - | Yes Micro-USB | Yes Micro-USB | 
| Wi-Fi | Yes 4 (802.11 b,g,n) | - | Yes 5 (802.11 a,ac,b,g,n) | Yes 4 (802.11 b,g,n) | 
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes | 
| Touch Screen | Yes | Yes | Yes | Yes | 
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes | 
| Music | ||||
| FM Radio | - | - | Yes | - | 
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes | 
| Stereo Speakers | - | - | Yes | - | 
| Photo & Video | ||||
| DLNA | - | - | Yes | - | 
| Miracast | - | - | Yes | Yes | 
| TV Output | - | - | Yes | - | 
| Power | ||||
| Fast Charging | - | - | Yes | - | 
| Voice | ||||
| HD Voice | Yes | - | Yes | Yes * | 
| Speaker Phone | Yes | - | Yes | Yes | 
| * Some versions only | ||||
| ZTE Concord II | Samsung SPH-i550 | HTC One M9 (GSM) | LG K4 / Optimus Zone 3 / Rebel | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
|  |  |  |  | |
| Phone | ZTE Concord II | Samsung SPH-i550 | HTC One M9 (GSM) | LG K4 / Optimus Zone 3 / Rebel | 
 







