Xiaomi Mix 4 (128GB) vs Xiaomi 15 (China 512GB/12GB)
Side by side comparison between Xiaomi Mix 4 vs Xiaomi 15 phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
AMOLED
AMOLED
1080x2400
108
MP
MP
20mp
8GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
6.36"
AMOLED
AMOLED
1200x2670
50
MP
MP
32mp
12GB
RAM
RAM
Octa-core
5400
mAh
mAh
(Non removable)
What's the better phone? Xiaomi 15 (China 512GB/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!
6 Advantages 
23 Advantages | 31 Common items in both devices |
| Dolby Vision/HDR10+ |
| 120Hz |
| Dual-LED flash |
| Digital and optical zoom |
| LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus |
| OIS: Optical stabilization |
| BSI sensor |
| +24 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 Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Model | Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) |
| Other model names | 小米MIX 4 2106118C (8GB RAM) | Xiaomi 15 24129PN74C |
| Country or region available |  (Global, International) |  China |
| Brand | Xiaomi | Xiaomi |
| Release date | 8/16/2021, Announced: 8/10/2021 | 10/29/2024 |
| Depth | 8 millimeters (0.31 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 75.35 x 162.65 millimeters (2.97 x 6.4 in) | 71.2 x 152.3 millimeters (2.8 x 6 in) |
| Weight | 225 grams (7.88 ounces) | 192 grams (6.72 ounces) |
| Build, materials | Aluminum body, glass front, ceramic back | Aluminum body, glass front |
| Protection against water and others | IP53 certified: protection against dust and splashing | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Display type | AMOLED | LTPO AMOLED |
| Screen size | 6.67" inches | 6.36" inches |
| Screen-to-body ratio | ~87.6% (screen-to-body ratio) | ~90% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1200x2670 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 395 PPI | 460 PPI |
| Colors | 1 billion | 68 billion |
| Scratch-resistant glass | Gorilla Glass Victus | Dragon Crystal Glass |
| Refresh rate | 120Hz | 120Hz |
| Display features | Dolby Vision/HDR10+ Touch Sampling Rate: 480Hz | 3200nits[peak] Dolby Vision/HDR10+ Touch Sampling Rate: 300Hz |
🤖 Operating System | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| System version | Android 11 | Android 15 |
| Firmware update | Android 13 | feature not registered |
| User Interface | MIUI 12.5 / 13 | HyperOS 2 |
⚙️ Processor | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 888+ (SM8350-AC) (5nm) | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) |
| CPU | Octa-core, 3 processors: 1x 3GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) | Octa-core, 2 processors: 2x 4.32GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) | Qualcomm Adreno 830 (1100MHz) |
| Performance (benchmark) | AnTuTu: 798010 (v9) | AnTuTu: 2534643 (v10) Geekbench: 9419 (v6) |
💽 Memory and storage | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| RAM memory | 8GB LPDDR5 | 12GB LPDDR5X |
| Internal storage | 128GB (101GB available) UFS 3.1 | 512GB (458GB available) UFS 4.0 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 2000/1024 Mbps | 3000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G, 5G |
| 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 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE | 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 |
| Primary 5G network | SA/NSA/Sub6 (1, 3, 5, 8, 28, 41, 77, 78, 79) | SA/NSA/Sub6 (1, 2, 3, 5, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89) |
| 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+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE | 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 |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Back camera (main camera) | (triple camera) 108 megapixels 13MP ultrawide f/2.212mm123°1/3.06"1.12µm 8MP periscope telephoto f/4.1120mmPDAFOIS5x-optical-zoom | (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 |
| Main camera resolution | 12000x9000 pixels | 8160x6120 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 8K UHD (7680x4320) 30 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.6 (aperture) |
| Focal length | 24mm (lens) | 23mm (lens) |
| Sensor size | 1/1.33" inches | 1/1.31" inches |
| Pixel size | 0.8µm pixel | 1.2µm pixel |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo/video on both cameras | HDR photo/video on both cameras |
| Camera extras | 4K@30/60fps 1080p@30/60/120/480fps | 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 |
📸 Front camera | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Front camera (secondary) | 20 megapixels | 32 megapixels |
| Front camera resolution | 5184x3840 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/3.4 (aperture) | f/2.0 (aperture) |
| Focal length | 27mm (lens) | 21mm (lens) |
| Sensor size | 1/0.8" inches | 1/3.14" inches |
| Pixel size | 0.8µm pixel | 0.7µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Loudspeaker | Stereo sound 24-bit/192kHz Tuned by Harman Kardon | Stereo sound 24-bit/192kHz Dolby Atmos Hi-Res |
| Active noise cancellation | 2 microphones or more | 4 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | Type-C jack with 3.5mm jack adapter | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.2 + A2DP/LE | 6.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Supported | Supported |
🧭 Sensors | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Heart rate Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Si: lithium-silicon (Non removable) |
| Battery capacity | 4500 mAh | 5400 mAh |
| Charger, watts | 120W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | 90W Wired fast charging Reverse charging by cable Quick Charge 3+ USB Power Delivery 3.0 |
| Inductive / wireless charging | 50W Qi wireless charging 10W Reverse wireless charging | 50W Qi Wireless charging (Qi/WPC) 10W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), 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, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Ceramic Black, Ceramic White, Shadow Gray • Silicone case included • Screen protector included | • Colors: Black, White, Green, Lilac, Liquid Silver • Xiaomi HyperAI |
☢️ Radiation rate | ||
| Xiaomi Mix 4 (128GB) | Xiaomi 15 (China 512GB/12GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.99W/kg (head), 1W/kg (body) |