8/256GB · Phantom Gray · Excellent Condition
8/256GB · Phantom Gray · Excellent Condition
Feature | Details |
|---|---|
Launch Year | 2021 |
Display | 6.2-inch FHD+ Dynamic AMOLED 2X Infinity-O Display |
Processor | Exynos 2100 / Snapdragon 888, depending on market |
Camera System | 12MP Wide + 12MP Ultra Wide + 64MP Telephoto |
Battery | 4,000mAh |
Storage Options | 8GB RAM / 128GB or 256GB Storage |
Charging Port | USB-C |
Weight | 169g / 171g, depending on network variant |
The Samsung Galaxy S21 is the compact model in the Galaxy S21 series, designed for users who want a modern Samsung flagship with 5G, smooth display performance and strong everyday camera features.
It features a 6.2-inch FHD+ Dynamic AMOLED 2X Infinity-O display, adaptive 120Hz refresh rate, Exynos 2100 or Snapdragon 888 processor depending on market, 8GB RAM, 128GB or 256GB storage, triple rear cameras, 10MP front camera, 4,000mAh battery, USB-C charging, wireless charging, Wireless PowerShare, IP68 water resistance and 5G support.
Compared with the Galaxy S20, the Galaxy S21 has a newer processor, refreshed design, adaptive 120Hz display and stronger long-term performance. However, it does not support microSD card expansion, which may matter to users who store many photos and videos.
The Galaxy S21 is suitable for users who want a compact Samsung phone for calls, messaging, browsing, mobile banking, photos, videos, social media and everyday apps, with 5G connectivity where network coverage is available.
The Galaxy S21 has a 6.2-inch FHD+ Dynamic AMOLED 2X display with adaptive 120Hz refresh rate.
Why it matters:
• Smooth scrolling and screen movement
• Compact size compared with larger Plus and Ultra models
• Bright and vibrant AMOLED display for videos and daily apps
• Good balance between screen size and one-handed use
• Suitable for users who prefer a smaller flagship phone
The Galaxy S21 has a triple rear camera system with Wide, Ultra Wide and 64MP Telephoto cameras.
Why it matters:
• Flexible setup for everyday photos and videos
• Ultra Wide camera is useful for scenery, interiors and group photos
• 64MP Telephoto camera supports closer framing and zoom shots
• Suitable for social media, travel and casual photography
• Strong camera setup for a compact Samsung flagship
The Galaxy S21 supports 5G and uses a flagship-level processor from its launch year.
Why it matters:
• Faster mobile data where 5G coverage is available
• Better performance than older Galaxy S10 and S20 models
• Suitable for multitasking and daily apps
• More future-ready than older 4G-only Samsung phones
• Good option for users who want a compact 5G Samsung device
Feature | Specification | Why It Matters |
|---|---|---|
Display | 6.2-inch FHD+ Dynamic AMOLED 2X Infinity-O Display | Compact and vibrant display for daily use |
Display Resolution | 2400 x 1080 | Clear enough for reading, browsing and videos |
Refresh Rate | Adaptive 120Hz | Smoother scrolling and screen movement than older 60Hz models |
Processor | Exynos 2100 / Snapdragon 888, depending on market | Former flagship processor suitable for daily apps and multitasking |
RAM & Storage | 8GB RAM / 128GB or 256GB Storage | Suitable for apps, photos, videos and daily files |
microSD Support | Not Supported | Important to note if you need expandable storage |
Rear Camera System | 12MP Wide + 12MP Ultra Wide + 64MP Telephoto | Flexible camera setup for daily photos, wide shots and zoom |
Main Camera | 12MP Wide with Dual Pixel AF and OIS | Suitable for everyday photos and videos |
Ultra Wide Camera | 12MP Ultra Wide | Useful for scenery, group shots and tight spaces |
Telephoto Camera | 64MP Telephoto with OIS | Useful for zoom shots and higher-resolution cropping |
Front Camera | 10MP Dual Pixel Selfie Camera | Suitable for selfies and video calls |
Video Recording | 8K Video Recording up to 24fps | High-resolution video capture for advanced users |
Battery | 4,000mAh | Practical battery capacity for a compact flagship |
Charging | USB-C with 25W Super Fast Charging support | Faster wired charging with a compatible charger |
Wireless Charging | Supported | Convenient charging without cable |
Wireless PowerShare | Supported | Can share battery with compatible Qi devices |
Water Resistance | IP68 | Protection against dust and accidental water exposure |
Network | 5G | Faster mobile data where 5G coverage is available |
Weight | 169g / 171g, depending on network variant | Lightweight compared with larger Samsung flagship models |
Feature | Galaxy S20 5G | Galaxy S21 | Galaxy S21+ | Galaxy S21 Ultra |
|---|---|---|---|---|
Launch Year | 2020 | 2021 | 2021 | 2021 |
Display | 6.2-inch Dynamic AMOLED 2X | 6.2-inch Dynamic AMOLED 2X | 6.7-inch Dynamic AMOLED 2X | 6.8-inch Dynamic AMOLED 2X |
Display Resolution | 3200 x 1440 | 2400 x 1080 | 2400 x 1080 | 3200 x 1440 |
Refresh Rate | Up to 120Hz | Adaptive 120Hz | Adaptive 120Hz | Adaptive 120Hz |
Processor | Exynos 990 / Snapdragon 865 | Exynos 2100 / Snapdragon 888 | Exynos 2100 / Snapdragon 888 | Exynos 2100 / Snapdragon 888 |
RAM & Storage | 12GB / 128GB | 8GB / 128GB or 256GB | 8GB / 128GB or 256GB | 12GB or 16GB / up to 512GB |
Rear Camera System | 12MP + 12MP + 64MP | 12MP + 12MP + 64MP | 12MP + 12MP + 64MP | 108MP + 12MP + 10MP + 10MP |
Front Camera | 10MP | 10MP | 10MP | 40MP |
Battery | 4,000mAh | 4,000mAh | 4,800mAh | 5,000mAh |
microSD Support | Supported | Not Supported | Not Supported | Not Supported |
Network | 5G | 5G | 5G | 5G |
Water Resistance | IP68 | IP68 | IP68 | IP68 |
Weight | 163g | 169g / 171g | 200g / 202g | 227g |
Best Advantage | Sharper display and microSD | Compact S21 with 5G | Larger display and battery | Best S21 camera and display |
Model | Recommended For |
|---|---|
Galaxy S21 | Users who want a compact Samsung flagship with 5G |
Galaxy S21+ | Users who want a larger display and bigger battery |
Galaxy S21 Ultra | Users who want the best S21 camera system, display and premium features |
Galaxy S21 FE 5G | Users who want a value-focused S21-style phone with a larger display |
If you’re considering the Galaxy S21, you may also want to compare:
Comparing similar models can help you decide whether you need a larger display, better battery life, stronger camera hardware, newer software support, microSD storage or a different operating system.
The Galaxy S21 is suitable for everyday use such as calls, messaging, browsing, email, mobile banking, photos, video watching and social media. It is a compact flagship with 5G, smooth 120Hz display and strong daily performance.
Yes. The Galaxy S21 supports 5G where network coverage and carrier support are available.
No. The Galaxy S21 does not support microSD card expansion. Choose the storage size carefully, especially if you store many photos, videos or apps.
Yes. The Galaxy S21 supports wireless charging. It also supports Wireless PowerShare, which can share battery with compatible Qi wireless charging devices.
The Galaxy S21 has a newer processor, refreshed design and improved long-term performance. The Galaxy S20 has a sharper Quad HD+ display and microSD support. Choose the Galaxy S21 if you prefer newer performance and design, and choose the Galaxy S20 if expandable storage is more important.
The Galaxy S21 is worth considering if you want a compact Samsung flagship with 5G, 120Hz AMOLED display, wireless charging, IP68 water resistance and strong everyday performance. For better battery life, stronger cameras or a larger display, compare it with the Galaxy S21+, Galaxy S21 Ultra or newer Galaxy S models.
The Samsung Galaxy S21 is suitable for users who want a compact Samsung flagship with 5G connectivity, smooth display performance and practical daily features. It offers a 6.2-inch FHD+ Dynamic AMOLED 2X display, adaptive 120Hz refresh rate, Exynos 2100 or Snapdragon 888 processor depending on market, 8GB RAM, up to 256GB storage, triple rear cameras, 10MP front camera, 4,000mAh battery, USB-C charging, wireless charging, Wireless PowerShare, IP68 water resistance and a lightweight body.
Compare available Galaxy S21 listings by colour, storage capacity, condition and warranty from verified local sellers on SellUp Marketplace.
