T-Mobile Sidekick 4G (SGH-T839) vs Apple iPhone XS Max (64GB)
Side by side comparison between T-Mobile Sidekick 4G vs Apple iPhone XS Max 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
6.5"
AMOLED
AMOLED
1242x2688
12
MP
MP
7.1mp
4GB
RAM
RAM
Hexa-core
3174
mAh
mAh
(Non removable)
What's the better phone? Apple iPhone XS Max (64GB)
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!
5 Advantages 
26 Advantages | 12 Common items in both devices |
| 16 million |
| Autofocus / PDAF: phase detection autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Proximity sensor |
| +5 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) | iPhone XS Max (64GB) | |
| Change model | ||
| Model | Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) |
| Other model names | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G | iPhone Xs Max A1921, A2101, A2102, A2104 |
| Country or region available |  USA |  (Global, International) |
| Brand | T-Mobile | Apple |
| Release date | 4/20/2011 | 9/21/2018, Announced: 9/12/2018 |
| Depth | 15 millimeters (0.59 inches) | 7.7 millimeters (0.3 inches) |
| Size (width x height) | 61 x 127 millimeters (2.4 x 5 in) | 77.4 x 157.5 millimeters (3.05 x 6.2 in) |
| Weight | 162 grams (5.67 ounces) | 208 grams (7.28 ounces) |
| Build, materials | feature not registered | Stainless steel body, glass front/back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Display type | TFT LCD | Super AMOLED |
| Screen size | 3.5" inches | 6.5" inches |
| Screen-to-body ratio | ~45% (screen-to-body ratio) | ~85.1% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 1242x2688 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 267 PPI | 456 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Scratch-resistant glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 625nits[typ] Dolby Vision/HDR10 Oleophobic coating screen |
🤖 Operating System | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| System version | Android 2.2.1 Froyo | iOS 12 |
| Firmware update | feature not registered | iOS 18 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Chipset | 32bit: Samsung Exynos 3 | 64bit: Apple A12 Bionic (7nm) |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Hexa-core, 2 processors: 2x 2.25GHz Vortex (Dual-core) 4x 1.6GHz Tempest (Quad-core) |
| GPU graphical controller | PowerVR SGX540 | Apple GPU (4-Core) |
| Performance (benchmark) | feature not registered | AnTuTu: 353210 (v7) Geekbench: 11432 (v4.4) GFXBench: 47fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| RAM memory | 512MB | 4GB LPDDR4X |
| Internal storage | 1GB (350MB available) | 64GB (54GB available) NVMe (SSD) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 1024/150 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 1700/2100 | All models: CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 A2104 model: TD-SCDMA 1900/2000 |
| Primary 4G network | Not supported | LTE Cat16 VoLTE A1921/A2104 models: LTE (Bands 1,2,3,4,5,7,8,12,13,14, 17, 18, 19,20,25,26,29,30,32,66,71) TD-LTE (Bands 34,38,39,40, 41,46) A2101 model: LTE (Bands 1,2,3,4,5,7,8,12,13,14, 17, 18, 19,20,25,26,28,29,30,32,66) TD-LTE (Bands 34,38,39,40, 41,46) A2102 model: LTE (Bands 1,2,3,4,5,7,8,11,12,13,14, 17, 18, 19,20,21,25,26,28,29,30,66) TD-LTE (Bands 34,38,39,40, 41,42,46) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Back camera (main camera) | 3.1 megapixels | (dual camera) 12 megapixels 12MP f/2.452mm1.0µm |
| Main camera resolution | 2048x1536 pixels | 4000x3000 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | Not supported | Quad-LED flash |
| Focal aperture | feature not registered | f/1.8 (aperture) |
| Focal length | feature not registered | 28mm (lens) |
| Sensor size | feature not registered | 1/2.55" inches |
| Pixel size | feature not registered | 1.4µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo/video on both cameras |
| Camera extras | feature not registered | 1080p@240fps |
📸 Front camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Front camera (secondary) | 0.3 megapixels | 7.1 megapixels |
| Front camera resolution | 640x480 pixels | 3072x2304 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 32mm (lens) |
| 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) | iPhone XS Max (64GB) | |
| Loudspeaker | Supported | Stereo sound |
| Active noise cancellation | feature not registered | 3 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MPEG4, H.265, H.264, MOV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, AAX+, AIFF |
🔌 Connectivity | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| USB | MicroUSB 2.0 | USB 2.0 proprietary connector |
| Audio output | 3.5mm jack | proprietary audio output |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 3.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi hotspot |
| DLNA | feature not registered | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, QZSS |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 3D Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 1500 mAh | 3174 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging USB Power Delivery 2.0 |
| Inductive / wireless charging | feature not registered | Qi wireless charging |
| Talk time autonomy | 6.5 hours | 25 hours (1 days) |
| Standby | 456 hours (19 days) | feature not registered |
➕ Other features | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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, HTML5 |
| 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: Space Gray, Silver, Gold • Lightning to 3.5mm headphone jack adapter included • Apple Pay • AirDrop, iCloud, FaceTime, Siri • Face ID |
☢️ Radiation rate | ||
| T-Mobile Sidekick 4G (SGH-T839) | iPhone XS Max (64GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |