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| Phone | Samsung SGH-X640 | Samsung Galaxy S 4 (GSM) | Samsung Galaxy Note 4 (CDMA) | Google Pixel 9 Pro | Amazon Fire | 
| Current U.S. Carriers | (none) | (none) | (none) | Spectrum Mobile T-Mobile US Cellular Verizon | (none) | 
| Global Availability | Released | Released | Released | Released | Released | 
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | 5" diag. 16 : 9 | 5.7" diag. 16 : 9 | 6.3" diag. 20 : 9 | 4.7" diag. 16 : 9 | 
| Display Resolution & Type | 128 x 160 pixels LCD (TFT/TFD) | 1080 x 1920 pixels (~441 ppi) AMOLED | 1440 x 2560 pixels (~515 ppi) AMOLED | 1280 x 2856 pixels (~497 ppi) AMOLED | 720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) | 
| Display Refresh | ? | 60 Hz | 60 Hz | 120 Hz | ? | 
| Battery | 800 mAh | 2,600 mAh | 3,220 mAh | 4,700 mAh | 2,400 mAh | 
| Processor | ? | 1.9 GHz Qualcomm Snapdragon 600 8064T | 2.7 GHz Qualcomm Snapdragon 805 | Google Tensor G4 | 2.2 GHz Qualcomm Snapdragon 800 | 
| RAM | ? | 2 GB | 3 GB | 16 GB | 2 GB | 
| Storage | ? raw hardware | 16 GB * | 32 GB | 128 GB * | 32 GB * | 
| Main Camera | Yes | 13 megapixel | 16 megapixel | 50 megapixel | 13 megapixel | 
| Wide Camera | - | - | - | 48 megapixel | - | 
| Tele Camera | - | - | - | 48 megapixel | - | 
| Video Capture | - | 1080p HD | 4K UHD | 4K UHD | 1080p HD | 
| Front Camera | - | 2 megapixel | 4 megapixel | 42 megapixel | 2 megapixel | 
| Weight | 3 oz (85g) | 4.59 oz (130g) | 6.21 oz (176g) | 7 oz (198g) | 5.64 oz (160g) | 
| Dimensions | 3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) | 5.38" x 2.75" x 0.31" (137 x 70 x 7.9 mm) | 6.04" x 3.09" x 0.33" (154 x 79 x 8.5 mm) | 6" x 2.8" x 0.3" (152 x 71 x 7.6 mm) | 5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm) | 
| Form Factor | Clamshell | Slab | Slab | Slab | Slab | 
| Platform / OS | (proprietary) | Android | Android | Android | (proprietary) | 
| Network Bands | GSM: 900, 1800, 1900 | 5G: 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 70, 71, 77-A, 77-C, 78, 258, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 6, 8, 19 GSM: 850, 900, 1800, 1900 | 4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 | ||
| Data Technology | GPRS | LTE (Cat 3) | LTE (Cat 4) | NR (5G) | LTE (Cat 4) | 
| Features | |||||
| Barometer | - | - | - | Yes | - | 
| Fingerprint Reader | - | - | Yes | Yes in-display (ultrasonic) | - | 
| Flashlight | - | Yes | Yes | Yes | Yes | 
| GPS / Location | - | n/a | n/a | n/a | Yes | 
| Water-Resistant | - | - | - | Yes IPX8 (SCUBA) | - | 
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | n/a | - | 
| Hearing Aid Compatible | - | Yes | Yes | Yes | Yes | 
| Multiple Languages | Yes | n/a | n/a | n/a | Yes | 
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes | 
| Connectivity | |||||
| Bluetooth | - | Yes Classic Audio | Yes Classic Audio | Yes Auracast, LE Audio, Classic Audio | Yes Classic Audio | 
| Infrared (IR) | - | Yes | Yes | - | - | 
| MirrorLink | - | - | Yes | - | - | 
| Mobile Hotspot | - | n/a | n/a | n/a | Yes | 
| NFC | - | Yes | Yes | Yes | Yes | 
| Thread | - | - | - | Yes | - | 
| USB | - | Yes | Yes Micro-USB | Yes USB Type C | Yes Micro-USB | 
| UWB | - | - | - | Yes | - | 
| Wi-Fi | - | Yes 5 (802.11 a,ac,b,g,n) | Yes 5 (802.11 a,ac,b,g,n) | Yes 7 (802.11 a,ac,ax,b,be,g,n) | Yes 5 (802.11 a,ac,b,g,n) | 
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | Yes | 
| Ringer ID | Yes | n/a | n/a | n/a | Yes | 
| Voice Dialing | - | n/a | n/a | n/a | Yes | 
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | - | 
| Custom Ringtones | Yes | n/a | n/a | n/a | Yes | 
| Real-Music Ringers | - | n/a | n/a | n/a | - | 
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | Yes | 
| Dual-SIM | - | - | - | Yes | - | 
| Satellite | - | - | - | Yes | - | 
| WAP / Web Browser | Yes | n/a | n/a | n/a | Yes | 
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | Yes | 
| Side Keys | Yes | Yes | Yes | Yes | Yes | 
| Stylus | - | - | Yes | - | - | 
| Touch Screen | - | Yes | Yes | Yes | Yes | 
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | - | 
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | Yes | 
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | - | 
| Instant Messaging | - | n/a | n/a | n/a | - | 
| MMS | Yes | n/a | n/a | n/a | Yes | 
| Text Messaging Templates | Yes | n/a | n/a | n/a | Yes | 
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes | 
| Music Player | - | n/a | n/a | n/a | Yes | 
| Stereo Speakers | - | - | - | Yes | Yes | 
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - | 
| Miracast | - | Yes | - | - | Yes | 
| TV Output | - | Yes | Yes | Yes | Yes | 
| Power | |||||
| Fast Charging | - | - | Yes | Yes | - | 
| Wireless Charging | - | - | - | Yes | - | 
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | Yes | 
| Calculator | Yes | n/a | n/a | n/a | Yes | 
| Calendar | Yes | n/a | n/a | n/a | Yes | 
| To-Do List | Yes | n/a | n/a | n/a | - | 
| Voice Memo | Yes | n/a | n/a | n/a | Yes | 
| Software | |||||
| Games | Yes | n/a | n/a | n/a | Yes | 
| Java (J2ME) | Yes | n/a | n/a | n/a | - | 
| Voice | |||||
| Call Screening | - | - | - | Yes | - | 
| HD Voice | - | - | Yes | Yes | Yes | 
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | - | 
| Speaker Phone | Yes | Yes | Yes | Yes | Yes | 
| Samsung SGH-X640 | Samsung Galaxy S 4 (GSM) | Samsung Galaxy Note 4 (CDMA) | Google Pixel 9 Pro | Amazon Fire | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy S 4 (GSM) | Samsung Galaxy Note 4 (CDMA) | Google Pixel 9 Pro | Amazon Fire | 
 







