T-Mobile Sidekick 4G (SGH-T839) vs Infinix Zero Flip (512GB)
Side by side comparison between T-Mobile Sidekick 4G vs Infinix Zero Flip 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
6.9"
AMOLED
AMOLED
1080x2640
50
MP
MP
50mp
8GB
RAM
RAM
Octa-core
4720
mAh
mAh
(Non removable)
What's the better phone? Infinix Zero Flip (512GB)
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 |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus on both cameras |
| Capacitive |
| Multitouch |
| Accelerometer |
| 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) | Infinix Zero Flip (512GB) | |
| Change model | ||
| Model | Sidekick 4G (SGH-T839) | Zero Flip (512GB) |
| Other model names | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G | Infinix Zero Flip X6962 |
| Country or region available |  USA |  (Global, International) |
| Brand | T-Mobile | Infinix |
| Release date | 4/20/2011 | 10/1/2024, Announced: 9/27/2024 |
| Depth | 15 millimeters (0.59 inches) | 7.6 millimeters (0.3 inches) |
| Size (width x height) | 61 x 127 millimeters (2.4 x 5 in) | 73.4 x 170.4 millimeters (2.89 x 6.71 in) |
| Weight | 162 grams (5.67 ounces) | 195 grams (6.83 ounces) |
| Build, materials | feature not registered | Plastic body Folded: 16 x 73.4 x 87.5 mm |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Display type | TFT LCD | LTPO AMOLED |
| Screen size | 3.5" inches | 6.9" inches |
| Screen-to-body ratio | ~45% (screen-to-body ratio) | ~86.1% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 1080x2640 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 267 PPI | 413 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 1400nits[peak] Extra display: AMOLED 3.64" (1056x1066), 120Hz, 413PPI, Gorilla Glass Victus |
🤖 Operating System | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| System version | Android 2.2.1 Froyo | Android 14 |
| Firmware update | feature not registered | Android 16 |
| User Interface | feature not registered | XOS 14 / 15 / 16 |
⚙️ Processor | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Chipset | 32bit: Samsung Exynos 3 | 64bit: MediaTek Dimensity 8020 (6nm) |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Octa-core, 2 processors: 4x 2.6GHz ARM Cortex-A78 (Quad-core) 4x 2GHz ARM Cortex-A55 (Quad-core) |
| GPU graphical controller | PowerVR SGX540 | ARM Mali-G77 MC9 |
| Performance (benchmark) | feature not registered | AnTuTu: 729420 (v10) |
💽 Memory and storage | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| RAM memory | 512MB | 8GB LPDDR4X |
| Internal storage | 1GB (350MB available) | 512GB (458GB available) UFS 3.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G, 5G |
| 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 1700/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE |
| Primary 5G network | Not supported | SA/NSA (1, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Back camera (main camera) | 3.1 megapixels | (dual camera) 50 megapixels 50MP ultrawide f/2.2115°1/2.8"0.64µmPDAF |
| Main camera resolution | 2048x1536 pixels | 8160x6120 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Not supported | Dual-LED on both cameras |
| Focal aperture | feature not registered | f/1.9 (aperture) |
| Focal length | feature not registered | 24mm (lens) |
| Sensor size | feature not registered | 1/1.57" inches |
| Pixel size | feature not registered | 1µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo only main camera |
| Camera extras | feature not registered | 4K@30fps 1080p@30/60/120fps |
📸 Front camera | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Front camera (secondary) | 0.3 megapixels | 50 megapixels |
| Front camera resolution | 640x480 pixels | 8160x6120 pixels |
| Video recording (secondary) | Not supported | 4K UHD (3840x2160) |
| Front flash | Not supported | Dual-LED |
| Focal aperture | feature not registered | f/2.5 (aperture) |
| Focal length | feature not registered | 25mm (lens) |
| Sensor size | feature not registered | 1/2.76" inches |
| Pixel size | feature not registered | 0.64µm pixel |
🔉 Sound and multimedia | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Loudspeaker | Supported | Stereo sound 24-bit/192kHz Hi-Res audio Tuned by JBL |
| Active noise cancellation | feature not registered | 2 microphones |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 3.0 + A2DP | 5.4 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Compass Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1500 mAh | 4720 mAh |
| Charger, watts | Wired charging | 70W Wired fast charging 10W Reverse charging by cable |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 6.5 hours | feature not registered |
| Standby | 456 hours (19 days) | feature not registered |
➕ Other features | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| 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: Rock Black, Blossom Glow |
☢️ Radiation rate | ||
| T-Mobile Sidekick 4G (SGH-T839) | Infinix Zero Flip (512GB) | |
| 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 |