OnePlus 9 Pro (256GB/12GB) vs Samsung Galaxy S2 (SGH-i777 16GB)
Side by side comparison between OnePlus 9 Pro vs Samsung Galaxy S2 (SGH-i777) phones, differences, pros, cons and full specifications. What's the better?
,
6.7"
AMOLED
AMOLED
1440x3216
48
MP
MP
16mp
12GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
4.3"
AMOLED
AMOLED
480x800
8
MP
MP
2mp
1GB
RAM
RAM
Dual-core
1650
mAh
mAh
(Removable)
What's the better phone? OnePlus 9 Pro (256GB/12GB)
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!
30 Advantages 
4 Advantages | 16 Common items in both devices |
| Fluid AMOLED / Super AMOLED Plus |
| Only digital zoom |
| LDAF/PDAF: laser/phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +9 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 | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Model | OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) |
| Other model names | OnePlus 9 Pro LE2123 (Global), LE2121 (India), LE2120(China) | AT&T Samsung Galaxy S II i777, Samsung Attain |
| Country or region available |  (Global, International) |  USA |
| Brand | OnePlus | Samsung |
| Release date | 3/30/2021, Announced: 3/23/2021 | 10/2/2011 |
| Depth | 8.7 millimeters (0.34 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 73.6 x 163.2 millimeters (2.9 x 6.43 in) | 66 x 126 millimeters (2.6 x 4.96 in) |
| Weight | 197 grams (6.9 ounces) | 122 grams (4.27 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Display type | Fluid AMOLED | Super AMOLED Plus |
| Screen size | 6.7" inches | 4.3" inches |
| Screen-to-body ratio | ~89.9% (screen-to-body ratio) | ~63.3% (screen-to-body ratio) |
| Display resolution | 1440x3216 pixels (20:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 526 PPI | 217 PPI |
| Colors | 1 billion | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass |
| Refresh rate | 120Hz | feature not registered |
| Display features | 1300nits[peak] HDR10+ Always-On Display | feature not registered |
🤖 Operating System | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| System version | Android 11 | Android 2.3.4 Gingerbread |
| Firmware update | Android 13 | Android 2.3.6 Gingerbread |
| User Interface | OxygenOS 12 / 13 (Global) ColorOS 12 / 13 (China) | feature not registered |
⚙️ Processor | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) | 32bit: Samsung Exynos 4 Dual 4210 (45nm) |
| CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) | Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A9 (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) | ARM Mali-400 MP4 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| RAM memory | 12GB LPDDR5 | 1GB LPDDR2 |
| Internal storage | 256GB (220GB available) UFS 3.1 | 16GB (13GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 21/5.76 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 | CDMA 800 (China), GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO (China) UMTS 800/850/900/1700/1800/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | LTE Cat20 VoLTE Global: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) India: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41, 46) China: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41) | Not supported |
| Primary 5G network | SA/NSA Global: (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78) India: (41, 78) China: (1, 3, 28, 41, 78, 79) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 800/850/900/1700/1800/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 VoLTE Global: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) India: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41, 46) China: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | Not supported |
📷 Camera | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Back camera (main camera) | (quad camera) 48 megapixels 8MP telephoto f/2.477mm1.0µmPDAFOIS3.3x-optical-zoom 50MP ultrawide f/2.214mm1/1.56"1.0µmAF 2MP monochrome f/2.4 | 8 megapixels |
| Main camera resolution | 8000x6000 pixels | 3264x2448 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 23mm (lens) | feature not registered |
| Sensor size | 1/1.43" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | Not supported |
| Camera extras | 4K@30/60/120fps 1080p@30/60/240fps Hasselblad Color Calibration Sony IMX689, IMX766. IMX471 sensor | feature not registered |
📸 Front camera | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Front camera (secondary) | 16 megapixels | 2 megapixels |
| Front camera resolution | 4608x3456 pixels | 1600x1200 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.06" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| USB | USB 3.1 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Micro-B USB MHL |
| Bluetooth | 5.2 + A2DP/LE | 3.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, SBAS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4500 mAh | 1650 mAh |
| Charger, watts | 65W (10V/6.5A) Wired fast charging USB Power Delivery 1.0 | Wired charging |
| Inductive / wireless charging | 50W Qi Wireless charging (Qi/WPC) | feature not registered |
| Talk time autonomy | feature not registered | 8 hours |
| Standby | feature not registered | 400 hours (16.7 days) |
➕ Other features | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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, HTML5 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Stellar Black, Morning Mist, Pine Green | • Colors: Black • Samsung TouchWiz 4.0 UI • Java framework |
☢️ Radiation rate | ||
| OnePlus 9 Pro (256GB/12GB) | Galaxy S2 (SGH-i777 16GB) | |
| 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 |