Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) vs Xiaomi Redmi A3 Pro
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Overview
| Specs Score | 91 / 100 Better Specs | 69 / 100 |
| Display Resolution | 1440 x 3200 pixels Better Resolution | 720 x 1640 pixels |
| Screen To Body Ratio | ~ 89.8% Less Bezels | ~ 84% |
| RAM | 12 GB More RAM | 4 GB |
| CPU Clock Speed | 2.9 GHz Faster Clock Speed | 2 GHz |
| Rear Camera | 108 MP Quad Better Camera Resolution | 50 MP Dual |
| Front Camera | 40 MP Better Front Camera Resolution | |
| Weight | 227 g Lighter | |
| Thickness | 8.9 mm | 8.2 mm Slimmer |
| Unique Features | 5G No Water Resistant No Wireless Charging Reverse Charging | No 3.5mm Audio Jack No Memory Card Support No No |
General
| Model | Galaxy S21 Ultra 5G | Redmi A3 Pro |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | October 12, 2024 |
Design
| Dimensions | 75.6 x 165.1 x 8.9 mm | 77.8 x 171.9 x 8.2 mm |
| Weight | 227 g | |
| Bezel less | No | |
| Colors | Blue |
Display
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color IPS Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.88 inches, 720 x 1640 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20.5:9 |
| PPI | ~ 515 PPI | ~ 260 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 84% |
| Glass Type | Corning Gorilla Glass Victus | |
| Features | Always-on Display, HDR10+ | Brightness: 600 nits |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 12 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes, upto 1 TB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 802.11 a/b/g/n/ac, 2.4GHz/5GHz | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.4 |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | No |
Extra
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with GPS, AGPS, Glonass, Beidou |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Fingerprint (side-mounted) accelerometer, compass |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Extra Features | eMMC 5.1 |
Camera
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) |
| OIS | Yes | |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | HDR |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
Technical
| OS | Android v10 | Android v14 |
| Chipset | Samsung Exynos 2100 | Mediatek Helio G81 Ultra |
| CPU | 2.9 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55 |
| GPU | Mali-G78 MP14 | Mali-G52 MC2 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | Yes | MP3, AMR, FLAC, APE |
| Video | Yes | MP4, M4V. MKV, XVID |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5160 mAh, Li-Po Battery |
| Fast Charging | Yes, 25W Fast Charging | Yes, 10W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W |
Discuss
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