Realme GT 3 (512GB) vs Sony Ericsson Xperia mini (ST15a)
Side by side comparison between Realme GT 3 vs Sony Ericsson Xperia mini phones, differences, pros, cons and full specifications. What's the better?
,
6.74"
AMOLED
AMOLED
1240x2772
50
MP
MP
16mp
16GB
RAM
RAM
Octa-core
4600
mAh
mAh
(Non removable)
vs
What's the better phone? Realme GT 3 (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!
30 Advantages 
7 Advantages | 12 Common items in both devices |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +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 | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Model | Realme GT 3 (512GB) | Xperia mini (ST15a) |
| Other model names | Realme GT3 240W RMX3709 | Sony Xperia mini ST15, Sony Ericsson Smultron |
| Country or region available |  (Global, International) |     (Latin America), Brazil, Canada, USA |
| Brand | Realme | Sony Ericsson |
| Release date | 3/17/2023, Announced: 2/28/2023 | 8/1/2011 |
| Depth | 8.9 millimeters (0.35 inches) | 16 millimeters (0.63 inches) |
| Size (width x height) | 75.8 x 163.9 millimeters (2.98 x 6.45 in) | 52 x 88 millimeters (2.05 x 3.46 in) |
| Weight | 199 grams (6.97 ounces) | 99 grams (3.47 ounces) |
| Build, materials | Plastic body, glass front/back Back: RGB light notification | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Display type | AMOLED | TFT LED-Backlit LCD |
| Screen size | 6.74" inches | 3" inches |
| Screen-to-body ratio | ~87.9% (screen-to-body ratio) | ~58.6% (screen-to-body ratio) |
| Display resolution | 1240x2772 pixels (20:9) | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 451 PPI | 192 PPI |
| Colors | 1 billion | 16 million |
| Scratch-resistant glass | Not supported | Scratch-resistant glass |
| Refresh rate | 144Hz | feature not registered |
| Display features | 500nits[typ], 1400nits[peak] HDR10+ Touch Sampling Rate: 360Hz | feature not registered |
🤖 Operating System | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| System version | Android 13 | Android 2.3.3 Gingerbread |
| Firmware update | Android 14 | Android 4.0.4 Ice Cream Sandwich ICS |
| User Interface | Realme UI 4.0 / 5.0 | feature not registered |
⚙️ Processor | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Chipset | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) | 32bit: Qualcomm Snapdragon S2 MSM8255 |
| 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: 1x 1GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 730 (818MHz) | Qualcomm Adreno 205 |
| Performance (benchmark) | AnTuTu: 1074427 (v9) Geekbench: 3898 (v5.1), 3980 (v6) GFXBench: 59fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| RAM memory | 16GB LPDDR5 | 512MB LPDDR |
| Internal storage | 512GB (455GB available) UFS 3.1 | 1GB (320MB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| 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 | 7.2/5.76 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, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) China/India version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42) | Not supported |
| Primary 5G network | SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) | 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 |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) China/India version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | Not supported |
📷 Camera | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Back camera (main camera) | (triple camera) 50 megapixels 8MP ultrawide f/2.216mm112°1/4"1.12µm 2MP microscope f/3.320mm | 5 megapixels |
| Main camera resolution | 8160x6120 pixels | 2592x1944 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | HD (1280x720) |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | feature not registered |
| Focal length | 24mm (lens) | feature not registered |
| Sensor size | 1/1.56" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | 4K@30/60fps 1080p@30/60fps Sony IMX890 | feature not registered |
📸 Front camera | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Front camera (secondary) | 16 megapixels | Not supported |
| Front camera resolution | 4608x3456 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | feature not registered |
| Focal length | 25mm (lens) | feature not registered |
| Sensor size | 1/3.09" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos | Supported |
| Active noise cancellation | 2 microphones | Not supported |
| 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, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.3 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Removable) EP500 |
| Battery capacity | 4600 mAh | 1200 mAh |
| Charger, watts | 240W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 4.5 hours |
| Standby | feature not registered | 320 hours (13.3 days) |
➕ Other features | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Booster Black, Pulse White | • Colors: Black, Pink, Blue, White • 2GB microSD included • Sony Ericsson UX platform • Sony Ericsson Timescape • Sony Ericsson PlayNow • Wi-Fi hotspot • Java framework |
☢️ Radiation rate | ||
| Realme GT 3 (512GB) | Sony Ericsson Xperia mini (ST15a) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.78W/kg (head) |