Samsung Star Duos (GT-B7722) vs Samsung Galaxy J7 Perx (SM-J727P)
Side by side comparison between Samsung Star Duos vs Samsung Galaxy J7 Perx phones, differences, pros, cons and full specifications. What's the better?
,
vs
5.5"
IPS
IPS
720x1280
8
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Removable)
What's the better phone? Samsung Galaxy J7 Perx (SM-J727P)
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!
3 Advantages 
28 Advantages | 8 Common items in both devices |
| LED flash |
| Only digital zoom |
| Autofocus |
| Accelerometer |
| Li-Ion: lithium-ion (Removable) |
| 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 | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Change model | ||
| Model | Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) |
| Other model names | Samsung GT-B7722/H, Samsung B7722i Duos | Galaxy J7 Perx (Sprint, Boost, Virgin Mobile) SM-J727PZKASPR |
| Country or region available | feature not registered |  USA |
| Brand | Samsung | Samsung |
| Release date | 6/1/2010 | 3/1/2017 |
| Depth | 14.3 millimeters (0.56 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 55.5 x 113.5 millimeters (2.19 x 4.47 in) | 76.2 x 151.4 millimeters (3 x 5.96 in) |
| Weight | 112 grams (3.92 ounces) | 167 grams (5.85 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 3.2" inches | 5.5" inches |
| Screen-to-body ratio | ~46.3% (screen-to-body ratio) | ~72.3% (screen-to-body ratio) |
| Display resolution | 240x400 pixels | 720x1280 pixels |
| Touchscreen | Resistive Single touch 1-point | Capacitive Multitouch |
| Pixel density (dot pitch) | 146 PPI | 267 PPI |
| Colors | 260 thousand | 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 | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| System version | Proprietary OS | Android 7.0 Nougat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Chipset | 32bit | 64bit: Qualcomm Snapdragon 626 MSM8953 Pro (14nm) |
| CPU | Single-core, 1 processor: Single-core | Octa-core, 1 processor: 8x 2.2GHz ARM Cortex-A53 (Octa-core) |
| GPU graphical controller | feature not registered | Qualcomm Adreno 506 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| RAM memory | feature not registered | 2GB LPDDR3 |
| Internal storage | 270MB | 16GB (10GB available) eMMC 5.1 |
| External storage | Until 16GB microSD, microSDHC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 3.6 Mbps | 300/50 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 2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (Bands 2, 4, 5, 12, 25, 26) TD-LTE (Bands 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 900/1800 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2560x1920 pixels | 3264x2448 pixels |
| Video recording (primary) | QVGA (320x240) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | 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 | EIS: Digital stabilization |
| 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 | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Front camera (secondary) | Not supported | 5 megapixels |
| Front camera resolution | Not supported | 2560x1920 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| 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 | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | 2 microphones or more |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | via Micro-USB | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Not supported |
| GPS | Not supported | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Sensors | Accelerometer | Accelerometer Ambient light sensor ANT+ Compass Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1200 mAh | 3300 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 5.6 hours | feature not registered |
| Standby | 330 hours (13.8 days) | 288 hours (12 days) |
➕ Other features | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS, MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • SHP OS • Dolphin 1.0 browser • 3D Sound Technology • Java framework | • Colors: Black • HAC M3/T3 |
☢️ Radiation rate | ||
| Samsung Star Duos (GT-B7722) | Galaxy J7 Perx (SM-J727P) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.07W/kg (head), 0.71W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |