Samsung Galaxy Note 8 has better RAM than Samsung Galaxy M21. In terms of display resolution, Samsung Galaxy Note 8 has better resolution of 2960 x 1440 than Samsung Galaxy M21 which has resolution of 2340 x 1080. Both have the same amount of internal memory.
| Name | Samsung Galaxy Note 8 | Samsung Galaxy M21 |
| RAM | 6 GB | 4 GB |
|---|---|---|
| Display | 6.3 in | 6.4 in |
| Internal Memory | 64 GB | 64 GB |
| Battery | 3300 mAh | 6000 mAh |
| Camera | 12 MP + 12 MP Dual | 48 MP + 8 MP + 5 MP Triple |
| Price | Rs. 29500 | Rs. 14990 |
The launch Date of the first phone is August, 2017. The cost of Samsung Galaxy Note 8 is Rs. 29500. The launch Date of the second phone is March 18, 2020. The cost of Samsung Galaxy M21 is Rs. 14990.
Samsung Galaxy Note 8 has screen size of 6.3 inches which falls short to Samsung Galaxy M21's 6.4 inch screen. Both the phones have Super AMOLED Screen Type. Samsung Galaxy Note 8 has display density of 522 PPI & Samsung Galaxy M21 has only 403 PPI display density. In terms of screen to body ratio, Samsung Galaxy M21 has better screen to body ratio of ~ 84.2% than Samsung Galaxy Note 8's ~ 83.2%. Samsung Galaxy Note 8 has 18.5:9 aspect ratio where as Samsung Galaxy M21 has 19.5:9 aspect ratio.
Samsung Galaxy Note 8's larger 6 GB RAM is better for playing games and all with respect to Samsung Galaxy M21's lower 4 GB RAM. and both have same Internal Memory of 64 GB.
Samsung Galaxy M21's 48 MP + 8 MP + 5 MP Triple Rear Camera outclasses Samsung Galaxy Note 8's 12 MP + 12 MP Dual Rear Camera in terms of resolution. Samsung Galaxy M21 will be better choice if you're looking to click lot of selfies as it has better 20 MP Front Camera in comparison to Samsung Galaxy Note 8's 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 7.1.1 and the second one on 10.0 version.
| Name | Samsung Galaxy Note 8 | Samsung Galaxy M21 |
| General | ||
| Model | Galaxy Note 8 | Galaxy M21 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August, 2017 | March 18, 2020 |
| Design | ||
| Dimensions | 74.59 x 162.5 x 8.5 mm | 75.1 x 159 x 8.9 mm |
| Weight | 195 g | 188 g |
| Display | ||
| Type | Color Super AMOLED Screen (16M colors Colors) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.3 inches, 1440 x 2960 pixels | 6.4 inches, 1080 x 2340 pixels |
| Aspect Ratio | 18.5:9 | 19.5:9 |
| PPI | ~ 522 PPI | ~ 403 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 84.2% |
| Glass Type | Corning Gorilla Glass 3 | |
| Features | Corning Gorilla Glass 5 Screen Protection, Curved Display | 420 nits (peak) |
| Notch | Yes, Water Drop Notch | |
| Curved Display | Yes | |
| Memory | ||
| RAM | 6 GB | 4 GB |
| Storage | 64 GB | 64 GB |
| Card Slot | Yes, (Hybrid Slot), upto 512 GB | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v5.0 |
| USB | Yes, USB-C v3.1 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | |
| Extra | ||
| GPS | Yes, with A-GPS Support | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes | Yes, Rear |
| Face Unlock | Yes | Yes |
| Sensors | Iris scanner, Accelerometer, Gyro, Proximity, Compass, Barometer, Heart rate, SpO2 | Accelerometer, Gyro Sensor, Geomagnetic Sensor, Proximity Sensor, Virtual Light Sensing |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Extra Features | Embedded S Pen | |
| Camera | ||
| Rear Camera | 12 MP + 12 MP | 48 MP ƒ/2 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.2 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | Face detection, Smile detection, Geo tagging, Panorama, Touch to focus | Panorama, HDR |
| Video Recording | 4K @ 30 fps UHD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 8 MP | 20 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v7.1.1 (Nougat), upgradable to v8.0 (Oreo) | Android v10.0, upgradable to v11 |
| Chipset | Samsung Exynos 8895 | Samsung Exynos 9611 |
| CPU | 2.3 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 | |
| GPU | Mali-G71 MP20 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Supports | MMS, Instant Messaging, Voice Commands | |
| Yes, with Push Email | Yes | |
| Music | MP3, WAV, WMA, eAAC+, FLAC | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA |
| Video | MP4, DivX, XviD, WMV | MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 3300 mAh, Li-ion Battery | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, Quick Charge 2.0 | Yes, 15W Fast Charging |
| Wireless Charging | Yes | |
| Music Playback Time | 74 hours | |