Xiaomi Mi 8 Youth (128GB/6GB) vs Samsung Galaxy M40 (SM-M405G/DS)
Side by side comparison between Xiaomi Mi 8 Youth vs Samsung Galaxy M40 phones, differences, pros, cons and full specifications. What's the better?
,
6.26"
IPS
IPS
1080x2280
12
MP
MP
24mp
6GB
RAM
RAM
Octa-core
3350
mAh
mAh
(Non removable)
vs
6.3"
PLS
PLS
1080x2340
32
MP
MP
16mp
4GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M40 (SM-M405G/DS)
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!
7 Advantages 
16 Advantages | 29 Common items in both devices |
| eMMC 5.1 |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| +22 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 Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Model | Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) |
| Other model names | 小米8 青春版 M1808D2TT, Xiaomi Mi8, Xiaomi Mi 8X, Xiaomi Platina | Galaxy M40 SM-M405G/Dual-Sim (64GB + 4GB RAM) |
| Country or region available |  China |  (Latin America) |
| Brand | Xiaomi | Samsung |
| Release date | 9/1/2018 | 6/11/2019 |
| Depth | 7.5 millimeters (0.3 inches) | 7.9 millimeters (0.31 inches) |
| Size (width x height) | 75.8 x 156.4 millimeters (2.98 x 6.16 in) | 73.9 x 155.3 millimeters (2.91 x 6.11 in) |
| Weight | 169 grams (5.92 ounces) | 168 grams (5.88 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 6.26" inches | 6.3" inches |
| Screen-to-body ratio | ~82.5% (screen-to-body ratio) | ~84.9% (screen-to-body ratio) |
| Display resolution | 1080x2280 pixels | 1080x2340 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 409 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| System version | Android 8.1 Oreo | Android 9.0 Pie |
| Firmware update | Android 9.0 Pie | Android 10 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 64bit: Qualcomm Snapdragon 675 SDM675 (11nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 2 processors: 2x 2GHz Kryo 460 Gold (Dual-core) 6x 1.7GHz Kryo 460 Silver (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | Qualcomm Adreno 612 845Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| RAM memory | 6GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (110GB available) eMMC 5.1 | 64GB (50GB available) eMMC 5.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 400/50 Mbps |
| Network technology | 2G, 3G, 4G | 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 | CDMA 800, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 (Bands 1,3,5,7,8) TD-LTE (Bands 34,38,39,40,41) VoLTE | LTE Cat6 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (Bands 38, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Back camera (main camera) | (dual camera) 12 megapixels 5MP depth f/2.01.12µm | (triple camera) 32 megapixels 8MP ultrawide f/2.212mm1.12µmPDAF 5MP depth f/2.2 |
| Main camera resolution | 4000x3000 pixels | 6528x4896 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.7 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.55" inches | feature not registered |
| Pixel size | 1.4µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection 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 | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Front camera (secondary) | 24 megapixels | 16 megapixels |
| Front camera resolution | 5632x4224 pixels | 4608x3456 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 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 | 1.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, DivX, XviD, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | Type-C jack with 3.5mm jack adapter | Type-C reversible connector |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3350 mAh | 3500 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 29 hours (1.2 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, 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 | 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: Twilight gold, Dream blue, Deep space gray • MIUI • 19:9 screen • Quick Charge 3.0 | • Colors: Midnight Blue, Sweater Blue • One UI • Dolby Atmos sound • Slow motion 240fps |
☢️ Radiation rate | ||
| Xiaomi Mi 8 Youth (128GB/6GB) | Galaxy M40 (SM-M405G/DS) | |
| 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 |