THE PHONE FILE · Samsung
Galaxy S23 Ultra.
Know your phone. Look beyond the headline specs. Explore its hardware, reported SAR, and a more thoughtful way to use it.
01 / HARDWARE
The details, beautifully clear.
General
- Technology
- GSM / CDMA / HSPA / EVDO / LTE / 5G
- Announced
- February 1, 2023
- Model Names
- SM-S918B, SM-S918B/DS, SM-S918U, SM-S918U1, SM-S918W, SM-S918N, SM-S9180, SM-S918E, SM-S918E/DS
Display
- Type
- Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)
- Size
- 6.8 inches, 114.7 cm2 (~89.9% screen-to-body ratio)
- Resolution
- 1440 x 3088 pixels (~500 ppi density)
- Protection
- Corning Gorilla Glass Victus 2
- Features
- Always-on display
Camera
- Main Camera
- Quad Camera: 200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6m, multi-directional PDAF, Laser AF, OIS ; 10 MP, f/4.9, 230mm (periscope telephoto), 1/3.52", 1.12m, Dual Pixel PDAF, OIS, 10x optical zoom ; 10 MP, f/2.4, 70mm (telephoto), 1/3.52", 1.12m, Dual Pixel PDAF, OIS, 3x optical zoom ; 12 MP, f/2.2, 13mm, 120 (ultrawide), 1/2.55", 1.4m, Dual Pixel PDAF, Super Steady video
- Main Features
- LED flash, auto-HDR, panorama
- Video
- 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS
- Selfie Camera
- Single Camera: 12 MP, f/2.2, 26mm (wide), Dual Pixel PDAF
- Selfie Camera Features
- Dual video call, Auto-HDR, HDR10+
- Selfie Camera Video
- 4K@30/60fps, 1080p@30fps
Battery
- Type
- Li-Ion 5000 mAh, non-removable
- Charging
- 45W wired, PD3.0, 65% in 30 min (advertised) ; 15W wireless (Qi/PMA) ; 4.5W reverse wireless
Hardware
- Software (source record)
- Android 13, One UI 5.1
- Chipset
- Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
- CPU
- Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
- GPU
- Adreno 740
- Internal Storage
- 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM; UFS 4.0
- Card Slot
- No
- Sensors
- Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer; Samsung DeX, Samsung Wireless DeX (desktop experience support) ; Bixby natural language commands and dictation ; Samsung Pay (Visa, MasterCard certified) ; Ultra Wideband (UWB) support
Connectivity
- Wi-fi
- Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct
- Bluetooth
- 5.3, A2DP, LE
- USB
- USB Type-C 3.2, OTG
- GPS
- GPS, GLONASS, BDS, GALILEO
- NFC
- Yes
- Radio
- No
Sound
- Loudspeaker
- Yes, with stereo speakers
- 3.5mm Jack
- No
Design
- Type
- Bar
- Dimensions
- 163.4 x 78.1 x 8.9 mm (6.43 x 3.07 x 0.35 in)
- Weight
- 234 g (8.25 oz)
- Colors
- Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition
- Build
- Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Network
- Speed
- HSPA, LTE-A (up to 7CA), 5G
- 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) ; Armor aluminum frame with tougher drop and scratch resistance (advertised) ; Stylus (Bluetooth integration, accelerometer, gyro)
- 2G Network
- GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only); CDMA 800 / 1900 & TD-SCDMA
- 3G Network
- HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 ; CDMA2000 1xEV-DO
- 4G Network
- 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA
- 5G Network
- 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International; 1, 7, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA
No matching specifications. Try a different word.
Specifications from the RF Safe source record. Regional variants can differ; source software details may predate later updates.
02 / REPORTED SAR
Six readings. More context.
SAR describes radiofrequency energy absorbed per unit of tissue mass under specified test conditions. These reported values are not a measurement of your everyday exposure or a safety score.
Cellular only
Cellular + Wi-Fi
Values match the rounded RF Safe dataset used in our comparison tool. Test separation and averaging details are not included in that dataset; check the original filing for your exact variant. These are phone values, not case-performance results.
03 / VISUAL EXPLORER
Take a closer look.
RF Safe’s age-based illustrations repeat the phone’s reported SAR values across age panels. The shading is illustrative; it does not measure absorption in children or predict an individual’s dose.
04 / YOUR NEXT STEP
Thoughtful design. Better habits.
Explore QuantaCase and the usage guide. Check the exact model before choosing a case—fit matters.
View this phone’s QuantaCase ↗The way you use it matters.
Get to know the flap, the orientation, and the everyday habits behind the design.
Read the usage guide →
