New Release Updated: Mar 2026

Samsung Galaxy S21 Ultra 5G

Name: Samsung Galaxy S21 Ultra 5G
Brand: Samsung
Price: 1199 USD
Availability: InStock

$1199 (Expected Price)

Reviewed by the MobGadgets Tech Team

We analyze specs, compare pricing, and aggregate real-world data to bring you unbiased mobile reviews. Learn how we test.

Display 6.8" AMOLED

Processor Exynos 2100

Battery 5000mAh

RAM & Storage 128GB/256GB/512GB storage, no card slot

Full Specs

Should you buy the Samsung Galaxy S21 Ultra 5G?

Reasons to Buy

Massive The Samsung Galaxy S21 Ultra 5G boasts a powerful Li-Ion 5000mAh battery that provides impressive battery life. With its large capacity, users can expect extended screen-on time and standby time, allowing for uninterrupted usage throughout the day. The device also supports fast charging technology, with 25W wired charging and 15W wireless charging options available. This ensures quick and convenient recharging when needed. The battery performance is optimized through various features and settings, such as power efficiency measures and battery optimization options. Users can easily manage their battery usage, monitor battery drain, and maximize battery backup. The device's battery capacity and health are also important factors, ensuring long-term performance and longevity. Overall, the Samsung Galaxy S21 Ultra 5G offers a robust battery experience, delivering reliable endurance and efficient charging capabilities. battery life
Large 6.7" display for media
Excellent value at $1199

Reasons to Avoid

May be bulky due to large battery
Average camera performance in low light

Full Specifications

Versions: SM-G998B, SM-G998B/DS (International); SM-G998U (USA); SM-G998U1 (USA unlocked); SM-G998W (Canada); SM-G998N (Korea); SM-G9980 (China)

Network Technology: GSM / CDMA / HSPA / EVDO / LTE / 5G

Launch Announced: 2021, January 14 Status: Available. Released 2021, January 29

Body Dimensions: 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) Weight: 227 g (Sub6), 229 g (mmWave) (8.01 oz) Build: Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame SIM: Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by) - : IP68 dust/water resistant (up to 1.5m for 30 min)
Stylus support

Display Type: Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak) Size: 6.8 inches, 112.1 cm² (~89.8% screen-to-body ratio) Resolution: 1440 x 3200 pixels, 20:9 ratio (~515 ppi density) Protection: Corning Gorilla Glass Victus - : Always-on display

Platform OS: Android 11, upgradable to Android 13, One UI 5.1 Chipset: Exynos 2100 (5 nm) - International
Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China CPU: Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China GPU: Mali-G78 MP14 - International
Adreno 660 - USA/China

Memory Card slot - No Internal: 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
- : UFS 3.1

Main Camera Quad: 108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS
10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom
10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom
12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video Features: LED flash, auto-HDR, panorama Video: 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS

Selfie camera Single: 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF Features: Dual video call, Auto-HDR Video: 4K@30/60fps, 1080p@30fps

Sound Loudspeaker : Yes, with stereo speakers 3.5mm jack : No
- : 32-bit/384kHz audio
Tuned by AKG

Comms WLAN: Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct Bluetooth: 5.2, A2DP, LE Positioning: GPS, GLONASS, BDS, GALILEO NFC: Yes Radio: FM radio (Snapdragon model only; market/operator dependent) USB: USB Type-C 3.2, OTG

Features Sensors: Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
- : Samsung DeX, Samsung Wireless DeX (desktop experience support)
Ultra Wideband (UWB) support

Battery Type: Li-Ion 5000 mAh, non-removable Charging: 25W wired, PD3.0
15W wireless (Qi/PMA)
4.5W reverse wireless

Misc Colors: Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy Models: SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980 SAR: 0.77 W/kg (head) - - 1.02 W/kg (body) - - SAR EU: 0.71 W/kg (head) - - 1.58 W/kg (body) - - Price: € 422.00 / $ 348.90 / £ 308.00

Tests Performance: AnTuTu: 657150 (v8)
GeekBench: 3518 (v5.1)
GFXBench: 33fps (ES 3.1 onscreen)
Display: Contrast ratio: Infinite (nominal)
Camera: Photo / Video
Loudspeaker: -25.5 LUFS (Very good)
Battery (old):
Endurance rating 114h

Frequently Asked Questions

With its Dimensity 6300 chipset and 6GB of RAM, it handles everyday tasks and moderate gaming efficiently, though extremely graphic-intensive games may require lower settings.

Yes, to complement its massive The Samsung Galaxy S21 Ultra 5G boasts a powerful Li-Ion 5000mAh battery that provides impressive battery life. With its large capacity, users can expect extended screen-on time and standby time, allowing for uninterrupted usage throughout the day. The device also supports fast charging technology, with 25W wired charging and 15W wireless charging options available. This ensures quick and convenient recharging when needed. The battery performance is optimized through various features and settings, such as power efficiency measures and battery optimization options. Users can easily manage their battery usage, monitor battery drain, and maximize battery backup. The device's battery capacity and health are also important factors, ensuring long-term performance and longevity. Overall, the Samsung Galaxy S21 Ultra 5G offers a robust battery experience, delivering reliable endurance and efficient charging capabilities. battery, it features standard fast charging capabilities to get you back up and running quickly.