Samsung Galaxy Z Fold 4 (SM-F936N 256GB) vs Samsung Star Duos (GT-B7722)
Side by side comparison between Samsung Galaxy Z Fold 4 vs Samsung Star Duos phones, differences, pros, cons and full specifications. What's the better?
,
7.6"
AMOLED
AMOLED
1812x2176
50
MP
MP
10mp
12GB
RAM
RAM
Octa-core
4400
mAh
mAh
(Non removable)
vs
What's the better phone? Samsung Galaxy Z Fold 4 (SM-F936N 256GB)
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!
36 Advantages 
4 Advantages | 5 Common items in both devices |
| LED flash |
| PDAF: phase detection autofocus / Autofocus |
| Accelerometer |
| Hands-free calling |
| Vibrating alert |
| + 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 | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Model | Galaxy Z Fold 4 (SM-F936N 256GB) | Star Duos (GT-B7722) |
| Other model names | 갤럭시 Z 폴드4 5G (SM-F936N) | Samsung GT-B7722/H, Samsung B7722i Duos |
| Country or region available |  South Korea | feature not registered |
| Brand | Samsung | Samsung |
| Release date | 8/25/2022, Announced: 8/10/2022 | 6/1/2010 |
| Depth | 6.3 millimeters (0.25 inches) | 14.3 millimeters (0.56 inches) |
| Size (width x height) | 130.1 x 155.1 millimeters (5.12 x 6.11 in) | 55.5 x 113.5 millimeters (2.19 x 4.47 in) |
| Weight | 263 grams (9.21 ounces) | 112 grams (3.92 ounces) |
| Build, materials | Aluminum frame, flexible plastic screen, glass back Back: Gorilla Glass Victus+ | feature not registered |
| Protection against water and others | IPX8 certified: water resistant up to 1.5 meters and 30min | Not supported |
📲 Display | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Display type | Dynamic AMOLED | TFT LCD |
| Screen size | 7.6" inches | 3.2" inches |
| Screen-to-body ratio | ~90.8% (screen-to-body ratio) | ~46.3% (screen-to-body ratio) |
| Display resolution | 1812x2176 pixels | 240x400 pixels |
| Touchscreen | Capacitive Multitouch | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 373 PPI | 146 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 120Hz | feature not registered |
| Display features | 1200nits[peak] HDR10+ Always-On Display Extra display: Dynamic AMOLED 2X 6.2" (904x2316), 120Hz, Gorilla Glass Victus+ | feature not registered |
🤖 Operating System | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| System version | Android 12 | Proprietary OS |
| Firmware update | Android 15 | feature not registered |
| User Interface | One UI 4.1 / 5.1 / 6.0 / 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Chipset | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) | 32bit |
| CPU | Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | Qualcomm Adreno 730 (818MHz) | feature not registered |
| Performance (benchmark) | AnTuTu: 964622 (v9) Geekbench: 3981 (v5.1) GFXBench: 43fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| RAM memory | 12GB LPDDR5 | feature not registered |
| Internal storage | 256GB (216GB available) UFS 3.1 | 270MB |
| External storage | Not supported | Until 16GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 3.6 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G |
| 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 850/900/1700/1900/2100 | UMTS 2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 900/1800 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE |
📷 Camera | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Back camera (main camera) | (triple camera) 50 megapixels 10MP telephoto f/2.466mm1.0µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm | 5 megapixels |
| Main camera resolution | 8160x6120 pixels | 2560x1920 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | QVGA (320x240) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 23mm (lens) | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | OIS: Optical stabilization | feature not registered |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Supported | feature not registered |
| HDR | HDR photo/video on both cameras | feature not registered |
| Camera extras | 8K@24fps 4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) Extra cover camera: 4MP (f/1.8 2.0µm) | feature not registered |
📸 Front camera | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Front camera (secondary) | 10 megapixels | Not supported |
| Front camera resolution | 3872x2592 pixels | Not supported |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | 24mm (lens) | feature not registered |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.22µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | via Micro-USB |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | Not supported |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4400 mAh | 1200 mAh |
| Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | 15W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging | feature not registered |
| Talk time autonomy | 39 hours (1.6 days) | 5.6 hours |
| Standby | feature not registered | 330 hours (13.8 days) |
➕ Other features | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Phantom Black, Graygreen, Beige, Burgundy • Samsung DeX • Samsung Pay • S Pen (Stylus Pen) | • Colors: Black • SHP OS • Dolphin 1.0 browser • 3D Sound Technology • Java framework |
☢️ Radiation rate | ||
| Galaxy Z Fold 4 (SM-F936N 256GB) | Samsung Star Duos (GT-B7722) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.667W/kg (head), 1.138W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |