Samsung Galaxy S2 (GT-i9100 32GB) vs Samsung Galaxy A15 (SM-A155F/DSN 128GB/4GB)
Side by side comparison between Samsung Galaxy S2 vs Samsung Galaxy A15 phones, differences, pros, cons and full specifications. What's the better?
,
4.3"
AMOLED
AMOLED
480x800
8
MP
MP
2mp
1GB
RAM
RAM
Dual-core
1650
mAh
mAh
(Removable)
vs
6.5"
AMOLED
AMOLED
1080x2340
50
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A15 (SM-A155F/DSN 128GB/4GB)
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!
6 Advantages 
24 Advantages | 18 Common items in both devices |
| Plastic body, glass front |
| Super AMOLED Plus / Super AMOLED |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| +11 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 S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Model | Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) |
| Other model names | Samsung Galaxy S2 i9100, Galaxy S II (SGS2) | Galaxy A15 4G LTE SM-A155F/Dual-SIM NFC |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Samsung | Samsung |
| Release date | 4/28/2012 | 12/16/2023, Announced: 12/11/2023 |
| Depth | 8.49 millimeters (0.33 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 66.1 x 125.3 millimeters (2.6 x 4.93 in) | 76.8 x 160.1 millimeters (3.02 x 6.3 in) |
| Weight | 116 grams (4.06 ounces) | 200 grams (7 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Display type | Super AMOLED Plus | Super AMOLED |
| Screen size | 4.3" inches | 6.5" inches |
| Screen-to-body ratio | ~63.5% (screen-to-body ratio) | ~84.3% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 217 PPI | 396 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | feature not registered | 90Hz |
| Display features | feature not registered | 800nits[peak] |
🤖 Operating System | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| System version | Android 2.3.4 Gingerbread | Android 14 |
| Firmware update | Android 4.1.2 Jelly Bean | feature not registered |
| User Interface | feature not registered | One UI 6.1 |
⚙️ Processor | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Chipset | 32bit: Samsung Exynos 4 Dual 4210 (45nm) | 64bit: MediaTek Helio G99 (6nm) |
| CPU | Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A9 (Dual-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | ARM Mali-400 MP4 266Mhz | ARM Mali-G57 MC2 |
| Performance (benchmark) | feature not registered | AnTuTu: 317085 (v9), 375321 (v10) Geekbench: 1928 (v5), 1936 (v6) |
💽 Memory and storage | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| RAM memory | 1GB LPDDR2 | 4GB LPDDR4X |
| Internal storage | 32GB (28GB available) | 128GB (108GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 300/150 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/900/2100 |
| Primary 4G network | Not supported | LTE Cat7 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/2100 |
| Secondary 4G network | Not supported | LTE Cat7 (1, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Back camera (main camera) | 8 megapixels | (triple camera) 50 megapixels 5MP ultrawide f/2.2 2MP macro f/2.4 |
| Main camera resolution | 3264x2448 pixels | 8160x6120 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.6 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.2" inches | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | Not supported | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@30fps 720p@120fps (slow motion) |
📸 Front camera | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Front camera (secondary) | 2 megapixels | 13 megapixels |
| Front camera resolution | 1600x1200 pixels | 4128x3096 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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 | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, DivX, XviD, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, AC3, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | USB Type-C (reversible) |
| Bluetooth | 3.0 + A2DP | 5.3 + A2DP/LE |
| WiFi | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1650 mAh | 5000 mAh |
| Charger, watts | Wired charging | 25W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 8.7 hours | 51 hours (2.1 days) |
| Standby | 600 hours (25 days) | feature not registered |
➕ Other features | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (Swype), 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 | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White, Pink • Samsung TouchWiz UI 4.0 • Java framework | • Colors: Brave Black, Optimistic Blue, Magical Blue, Personality Yellow |
☢️ Radiation rate | ||
| Galaxy S2 (GT-i9100 32GB) | Galaxy A15 (SM-A155F/DSN 128GB/4GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.16W/kg (head), 0.96W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.34W/kg (head) | 0.42W/kg (head), 1.29W/kg (body) |