Xiaomi Redmi Note 9T (128GB/4GB) vs Samsung Galaxy Ace Duos (GT-S6802B)
Side by side comparison between Xiaomi Redmi Note 9T vs Samsung Galaxy Ace Duos phones, differences, pros, cons and full specifications. What's the better?
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6.53"
IPS
IPS
1080x2340
48
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
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What's the better phone? Xiaomi Redmi Note 9T (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!
30 Advantages 
2 Advantages | 13 Common items in both devices |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Compass |
| +6 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 | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Model | Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) |
| Other model names | Redmi Note 9T 5G M2007J22G | Samsung Galaxy Ace Duos S6802 Dual-Sim |
| Country or region available |  (Global, International) |   (Latin America), Brazil |
| Brand | Xiaomi | Samsung |
| Release date | 1/18/2021, Announced: 1/8/2021 | 6/1/2012 |
| Depth | 9 millimeters (0.35 inches) | 11.5 millimeters (0.45 inches) |
| Size (width x height) | 77.3 x 161.9 millimeters (3.04 x 6.37 in) | 61.5 x 112.74 millimeters (2.42 x 4.44 in) |
| Weight | 199 grams (6.97 ounces) | 122 grams (4.27 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Water repellent nano-coating (don't immerse) | Not supported |
📲 Display | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 6.53" inches | 3.5" inches |
| Screen-to-body ratio | ~83.6% (screen-to-body ratio) | ~52.6% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 165 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | 450nits[typ] 2.5D glass | feature not registered |
🤖 Operating System | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| System version | Android 10 | Android 2.3.6 Gingerbread |
| Firmware update | Android 12 | feature not registered |
| User Interface | MIUI 12 / 13 | feature not registered |
⚙️ Processor | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Chipset | 64bit: MediaTek Dimensity 800U (7nm) | 32bit: Broadcom BCM21553 (65nm) |
| CPU | Octa-core, 2 processors: 2x 2.4GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) | Single-core, 1 processor: 1x 832MHz ARM1136 (Single-core) |
| GPU graphical controller | ARM Mali-G57 MC3 (850MHz) | VideoCore IV |
| Performance (benchmark) | AnTuTu: 288732 (v8) Geekbench: 1775 (v5.1) | feature not registered |
💽 Memory and storage | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| RAM memory | 4GB LPDDR4X | 512MB |
| Internal storage | 128GB (101GB available) UFS 2.2 | 4GB (3GB available) |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 7.2 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 850/2100 |
| Primary 4G network | LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32) TD-LTE (38, 40, 41, 42) VoLTE | Not supported |
| Primary 5G network | 1, 3, 5, 7, 8, 20, 28, 38, 41, 77, 78, 79 SA/NSA/Sub6 | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32) TD-LTE (38, 40, 41, 42) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Back camera (main camera) | (triple camera) 48 megapixels 2MP macro f/2.4 2MP depth f/2.4 | 5 megapixels |
| Main camera resolution | 8000x6000 pixels | 2560x1920 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | VGA (640x480) 30 fps |
| Flash | LED flash | Not supported |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| 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 | 1080p@30/60fps | feature not registered |
📸 Front camera | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Front camera (secondary) | 13 megapixels | Not supported |
| Front camera resolution | 4128x3096 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.3 (aperture) | feature not registered |
| Focal length | 29mm lens | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.1 + A2DP/LE | 3.0 + 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 | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) EB464358VU |
| Battery capacity | 5000 mAh | 1300 mAh |
| Charger, watts | 18W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 6.5 hours |
| Standby | feature not registered | 410 hours (17.1 days) |
➕ Other features | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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: Nightfall Black, Daybreak Purple | • Colors: White, Black • Samsung TouchWiz UX UI • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| Redmi Note 9T (128GB/4GB) | Galaxy Ace Duos (GT-S6802B) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.07W/kg (head), 1.05W/kg (body) | 0.607W/kg (head), 0.768W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.59W/kg (head), 0.94W/kg (body) | 0.764W/kg (head), 0.915W/kg (body) |