Xiaomi 15 (China 512GB/16GB) vs Samsung Galaxy S Relay 4G (SGH-T699)
Side by side comparison between Xiaomi 15 vs Samsung Galaxy S Relay 4G phones, differences, pros, cons and full specifications. What's the better?
,
6.36"
AMOLED
AMOLED
1200x2670
50
MP
MP
32mp
16GB
RAM
RAM
Octa-core
5400
mAh
mAh
(Non removable)
vs
4"
AMOLED
AMOLED
480x800
5
MP
MP
1.3mp
1GB
RAM
RAM
Dual-core
1800
mAh
mAh
(Removable)
What's the better phone? Xiaomi 15 (China 512GB/16GB)
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!
37 Advantages 
5 Advantages | 15 Common items in both devices |
| LTPO AMOLED / Super AMOLED |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +8 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 | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Model | Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) |
| Other model names | Xiaomi 15 24129PN74C | T-Mobile Galaxy S Blaze Q, Galaxy S Relay 4G T699 (no LTE) |
| Country or region available |  China |  USA |
| Brand | Xiaomi | Samsung |
| Release date | 10/29/2024 | 9/19/2012 |
| Depth | 8.4 millimeters (0.33 inches) | 13.5 millimeters (0.53 inches) |
| Size (width x height) | 71.2 x 152.3 millimeters (2.8 x 6 in) | 66 x 126 millimeters (2.6 x 4.96 in) |
| Weight | 192 grams (6.72 ounces) | 147 grams (5.15 ounces) |
| Build, materials | Aluminum body, glass front | 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 | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Display type | LTPO AMOLED | Super AMOLED |
| Screen size | 6.36" inches | 4" inches |
| Screen-to-body ratio | ~90% (screen-to-body ratio) | ~54.8% (screen-to-body ratio) |
| Display resolution | 1200x2670 pixels (20:9) | 480x800 pixels (5:3) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 460 PPI | 233 PPI |
| Colors | 68 billion | 16 million |
| Scratch-resistant glass | Dragon Crystal Glass | Not supported |
| Refresh rate | 120Hz | 60Hz |
| Display features | 3200nits[peak] Dolby Vision/HDR10+ Touch Sampling Rate: 300Hz | Not supported |
🤖 Operating System | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| System version | Android 15 | Android 4.0.4 Ice Cream Sandwich ICS |
| Firmware update | feature not registered | feature not registered |
| User Interface | HyperOS 2 | TouchWiz 4.0 UI |
⚙️ Processor | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 32bit: Qualcomm Snapdragon S3 (MSM8260) (45nm) |
| CPU | Octa-core, 2 processors: 2x 4.32GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Dual-core, 1 processor: 2x 1.5GHz Scorpion (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | Qualcomm Adreno 220 (266MHz) |
| Performance (benchmark) | AnTuTu: 2534643 (v10) Geekbench: 9419 (v6) | feature not registered |
💽 Memory and storage | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| RAM memory | 16GB LPDDR5X | 1GB LPDDR2 |
| Internal storage | 512GB (458GB available) UFS 4.0 | 8GB (5GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 42/5.76 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42, 48) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (1, 2, 3, 5, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| 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 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42, 48) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | Not supported |
📷 Camera | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Back camera (main camera) | (triple camera) 50 megapixels 50MP telephoto f/2.060mm1/2.76"0.64µmPDAFOIS2.6x-optical-zoom 50MP ultrawide f/2.214mm115°1/2.76"0.64µm | 5 megapixels |
| Main camera resolution | 8160x6120 pixels | 2592x1944 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | HD (1280x720) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.6 (aperture) | feature not registered |
| Focal length | 23mm (lens) | feature not registered |
| Sensor size | 1/1.31" inches | feature not registered |
| Pixel size | 1.2µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical 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 | 8K@24/30fps (HDR) 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG) 1080p@30/60/120/240/960fps 720p@1920fps Leica Summilux | feature not registered |
📸 Front camera | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Front camera (secondary) | 32 megapixels | 1.3 megapixels |
| Front camera resolution | 6528x4896 pixels | 1280x1024 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 21mm (lens) | feature not registered |
| Sensor size | 1/3.14" inches | feature not registered |
| Pixel size | 0.7µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Loudspeaker | Stereo sound 24-bit/192kHz Dolby Atmos Hi-Res | Mono sound (not stereo) |
| Active noise cancellation | 4 microphones | 1 microphone |
| 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, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| USB | USB 3.2 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 | 6.0 + A2DP/LE | 3.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| Battery type | Li-Si: lithium-silicon (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 5400 mAh | 1800 mAh |
| Charger, watts | 90W Wired fast charging Reverse charging by cable Quick Charge 3+ USB Power Delivery 3.0 | 5W Wired charging |
| Inductive / wireless charging | 50W Qi Wireless charging (Qi/WPC) 10W Reverse wireless charging | Not supported |
| Talk time autonomy | feature not registered | 10 hours |
| Standby | feature not registered | 312 hours (13 days) |
➕ Other features | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| 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, HTML5, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Retractable QWERTY keyboard |
| Miscellaneous | • Colors: Black, White, Green, Lilac, Liquid Silver • Xiaomi HyperAI | • Colors: Black • Java framework |
☢️ Radiation rate | ||
| Xiaomi 15 (China 512GB/16GB) | Galaxy S Relay 4G (SGH-T699) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.99W/kg (head), 1W/kg (body) | feature not registered |