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Samsung Galaxy S21 Ultra 5G
Samsung Samsung Galaxy S21 Ultra 5G
2.7
Price TBA
View Details
OnePlus 13
OnePlus OnePlus 13
256GB · 12GB RAM
4.2
From $899
View Details
★ Our Pick

Our Verdict

Analysis

OnePlus 13 has the bigger display.

Overall Winner
OnePlus 13
Display Winner
OnePlus 13
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie

Specifications Comparison

Feature Samsung Galaxy S21 Ultra 5G OnePlus 13
Display size (in) 6.80 6.82
Charging (W) 25 100
Main camera (MP) 108.00 50.00
Selfie (MP) 40.00 32.00
Weight (g) 227 210
Thickness (mm) 8.90 8.50
Chipset Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China Snapdragon 8 Elite
OS Android 11, up to 4 major Android upgrades, One UI 7 Android 15, OxygenOS 15

Pros & Cons

Samsung Galaxy S21 Ultra 5G

OnePlus 13

  • Very fast charging
  • Large battery
  • Smooth software
  • Limited zoom range vs rivals
  • No microSD
  • Polarising design

Every Spec, Side by Side

Specification
Samsung
Samsung Galaxy S21 Ultra 5G
OnePlus
OnePlus 13
Battery 3 specs
Type
Li-Ion 5000 mAh
Si/C Li-Ion 6000 mAh
Charging
25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
100W wired, 50W wireless
Capacity
6000 mAh
Body 5 specs
Dimensions
165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
162.9 x 76.5 x 8.5 mm
Weight
227 g (Sub6), 229 g (mmWave) (8.01 oz)
210 g
Build
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Glass front (Ceramic Guard), glass back or silicone polymer back (eco leather), aluminum frame
SIM
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)· Nano-SIM + Nano-SIM
 
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Connectivity 8 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual or tri-band, Wi-Fi Direct
Bluetooth
5.2, A2DP, LE
5.4, A2DP, LE, aptX HD, LHDC 5
Positioning
GPS, GLONASS, BDS, GALILEO
GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
NFC
Yes
Yes
Radio
FM radio (Snapdragon model only; market/operator dependent)
No
USB
USB Type-C 3.2, OTG
USB Type-C 3.2, OTG
Infrared port
Yes
5G
Yes
Display 5 specs
Type
Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
LTPO AMOLED
Size
6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
6.82 inches
Resolution
1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
1440 x 3168 pixels
Protection
Corning Gorilla Glass Victus
Ceramic Guard glass, Mohs level 4
 
Ultra HDR image support
Features 2 specs
Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Launch 2 specs
Announced
2021, January 14
2024, October 31
Status
Available. Released 2021, January 29
Available. Released 2024, November 01
Main Camera 4 specs
Quad
108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Features
Laser AF, LED flash, auto-HDR, panorama
Laser focus, Hasselblad Color Calibration, color spectrum sensor, Dual-LED flash, HDR, panorama
Video
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
8K@30fps, 4K@30/60fps, 1080p@30/60/240/480fps, Auto HDR, gyro-EIS, Dolby Vision
Triple
50 MP + 50 MP + 50 MP
Memory 5 specs
Card slot
No
No
Internal
128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 24GB RAM
 
UFS 3.1
UFS 4.0
RAM
12GB
Storage
256GB
Misc 5 specs
Colors
Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Black Eclipse, Arctic Dawn, Midnight Ocean
Models
SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
CPH2655, CPH2653, PJZ110, CPH2649
SAR
0.77 W/kg (head)     1.02 W/kg (body)    
1.13 W/kg (head)     1.15 W/kg (body)    
SAR EU
0.71 W/kg (head)     1.58 W/kg (body)    
Price
$ 254.95 / £ 214.99 / € 247.17
$ 799.99 / £ 619.99 / € 739.90 / ₹ 57,999
Network 7 specs
Technology
GSM / CDMA / HSPA / EVDO / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
 
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA - China, India
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 48, 66, 71 - International
5G bands
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 75, 77, 78 SA/NSA/Sub6 - International
Speed
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
HSPA, LTE, 5G
Our Tests 6 specs
Performance
AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)
AnTuTu: 2690491 (v10) GeekBench: 9278 (v6) 3DMark: 6615 (Wild Life Extreme)
Display
1023 nits max brightness (measured)
1204 nits max brightness (measured)
Camera
Photo / Video
Loudspeaker
-25.5 LUFS (Very good)
-23.5 LUFS (Very good)
Battery (old)
Endurance rating 114h
Battery
Active use score 15:28h
Platform 4 specs
OS
Android 11, up to 4 major Android upgrades, One UI 7
Android 15, OxygenOS 15
Chipset
Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
Snapdragon 8 Elite
CPU
Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Mali-G78 MP14 - InternationalAdreno 660 - USA/China
Adreno 830
Selfie Camera 3 specs
Single
40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
32 MP
Features
HDR
HDR, panorama
Video
4K@30/60fps, 1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
No
No
 
High-bitrate audio support
24-bit/192kHz Hi-Res audio
Eu Label 4 specs
Energy
Class A
Battery
61:36h endurance, 1000 cycles
Free fall
Class D (45 falls)
Repairability
Class B

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Common Questions

Which phone is the best in this comparison?

OnePlus 13 has the bigger display.

How are the comparison winners decided?

We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".

Which is more affordable?

The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.