T-Mobile Sidekick 4G (SGH-T839) vs NGM Dynamic Star
Side by side comparison between T-Mobile Sidekick 4G vs NGM Dynamic Star phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
TFT
TFT
480x800
3.1
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
vs
What's the better phone? NGM Dynamic Star
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
2 Advantages 
14 Advantages | 22 Common items in both devices |
| Until 32GB microSD, microSDHC |
| TFT LCD |
| 16 million |
| Only digital zoom |
| Autofocus |
| 3G+ HSPA+ |
| 21 Mbps |
| +15 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Change model | ||
| Model | Sidekick 4G (SGH-T839) | Dynamic Star |
| Other model names | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G | New Generation Mobile NGM Dynamic Star Dual Sim |
| Country or region available |  USA | feature not registered |
| Brand | T-Mobile | NGM |
| Release date | 4/20/2011 | 5/1/2013 |
| Depth | 15 millimeters (0.59 inches) | 9.6 millimeters (0.38 inches) |
| Size (width x height) | 61 x 127 millimeters (2.4 x 5 in) | 74 x 147.5 millimeters (2.91 x 5.81 in) |
| Weight | 162 grams (5.67 ounces) | 168 grams (5.88 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 3.5" inches | 5" inches |
| Screen-to-body ratio | ~45% (screen-to-body ratio) | ~63.1% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 540x960 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 267 PPI | 220 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| System version | Android 2.2.1 Froyo | Android 4.2.1 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Chipset | 32bit: Samsung Exynos 3 | 32bit: MediaTek MT6589WM |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | PowerVR SGX540 | PowerVR SGX544 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| RAM memory | 512MB | 1GB |
| Internal storage | 1GB (350MB available) | 4GB (2GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Tri-Band 900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | UMTS 1700/2100 | UMTS 900/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | Not supported | GSM 900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Back camera (main camera) | 3.1 megapixels | 12 megapixels |
| Main camera resolution | 2048x1536 pixels | 4000x3000 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | HD (1280x720) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Not supported |
| HDR | feature not registered | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Front camera (secondary) | 0.3 megapixels | 2 megapixels |
| Front camera resolution | 640x480 pixels | 1600x1200 pixels |
| Video recording (secondary) | Not supported | VGA (640x480) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 3.0 + A2DP | 3.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | feature not registered | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) BL-53 |
| Battery capacity | 1500 mAh | 2100 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 6.5 hours | 11.2 hours |
| Standby | 456 hours (19 days) | 335 hours (14 days) |
➕ Other features | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, Flash player | HTML, XHTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Retractable QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Matte black, Pearl magenta • 2GB microSD included • Samsung TouchWiz UI • Optical trackpad • HAC M3/T3 • T-Mobile TV • DLNA • WiFi hotspot Java framework | • Colors: White, Black • Swiftkey 4.0 • Games: Gameloft Wonder Zoo Freemium, Kingdoms and Lords Freemium, Texas Hold'em Poker 3, Asphalt 7 Full • WiFi display • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| T-Mobile Sidekick 4G (SGH-T839) | NGM Dynamic Star | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.574W/kg (body) |