Two devices. One clear decision.

LAUNCH DATE3 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Announced	February 17, 2023	25 February 2026
Released	2023-02-17	2026-03-06
Status	Available	Available; released 11 March 2026

NETWORK6 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
2G Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900
3G Bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G LTE	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	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, 48, 66, 71 - USA unlocked
5G	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	SA/NSA/Sub6
Speed	LTE, 5G	LTE, 5G
Technology	5G/4G/LTE/GSM	LTE / 5G

BODY5 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Build	Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame	Glass front (Corning Gorilla Armor 2), Glass back (Gorilla Glass Victus 2), Aluminum frame
Dimensions	163.4 x 78.1 x 8.9 mm (6.43 x 3.07 x 0.35 in)	163.6 x 78.1 x 7.9 mm (6.44 x 3.07 x 0.31 in)
IP Rating	IP68 dust/water resistant (up to 1.5m for 30 min)	IP68
SIM	Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)	Nano-SIM + eSIM
Weight	234 g (8.25 oz)	214 g

DISPLAY7 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Brightness	1200 nits (HBM), 1750 nits (peak)	2600 nits (peak)
Protection	Corning Gorilla Glass Victus 2	Corning Gorilla Armor 2
Refresh Rate	120Hz	1–120Hz
Resolution	1440 x 3088 pixels, 19.3:9 ratio (~500 ppi density)	1440 x 3120 pixels, 19.5:9 ratio (~500 ppi density)
Screen-to-body	~89.9%	~90.7%
Size	6.8 inches, 114.7 cm2 (~89.9% screen-to-body ratio)	6.9 inches
Type	Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)	Dynamic AMOLED 2X

PLATFORM4 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
CPU	Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)	Octa-core (2x4.74 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Chipset	Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)	Snapdragon 8 Elite Gen 5 for Galaxy
GPU	Adreno 740	Adreno 840
OS	Android 13, up to 4 major Android upgrades, One UI 6.1.1	Android 16, One UI 8.5

MEMORY5 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Card slot	No	No
Internal	256GB, 512GB, 1TB	256 GB / 512 GB / 1 TB
RAM	8GB RAM, 12GB RAM	12 GB; 16 GB with 1 TB
Storage Type	—	UFS 4.X
Storage/RAM variants	256GB, 512GB, 1TB; 8GB RAM, 12GB RAM	256 GB / 512 GB / 1 TB; 12 GB; 16 GB with 1 TB RAM

MAIN CAMERA3 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Features	Laser AF, LED flash, auto-HDR, panorama	Laser AF, Best Face, LED Flash, Panorama, Auto-HDR
MAIN CAMERA	200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 70mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 230mm (periscope telephoto), 1/3.52", 1.12µm, PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 1	200 MP f/1.4 OIS + 50 MP ultrawide f/1.9 + 50 MP telephoto f/2.9 OIS (5×) + 10 MP telephoto f/2.4 OIS (3×)
Video	8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS	8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS

SELFIE CAMERA3 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Features	HDR, HDR10+	HDR
Selfie camera	12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF	12 MP f/2.2
Video	4K@30/60fps, 1080p@30fps	4K@30/60fps, 1080p@30fps

SOUND2 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
3.5mm jack	No	No
Loudspeaker	Yes, with stereo speakers	Yes, with Stereo Speakers

COMMUNICATION6 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Bluetooth	5.3, A2DP, LE	6.0
NFC	Yes	Yes
Positioning	GPS, GALILEO, GLONASS, BDS, QZSS	Yes, with A-GPS
Radio	No	No
USB	USB Type-C 3.2, OTG	USB Type-C 3.2, DisplayPort 1.2
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct	Wi-Fi 7

FEATURES1 field

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

BATTERY3 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Capacity	5000 mAh	5000 mAh (typical)
Charging Type	45W wired, PD3.0, 65% in 30 min 15W wireless (Qi) 4.5W reverse wireless	Wired fast charging; wireless and reverse wireless charging
Type	Li-Ion 5000 mAh	Lithium-ion, non-removable

ADDITIONAL INFORMATION5 fields

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Colors	Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition	Cobalt Violet, White, Black, Sky Blue, Pink Gold, Silver Shadow
Compatibility	—	Singapore specification set; chipset and configurations vary by market
Launch Price (USD)	$571.00 (reference only — see Price in Nigeria above for the actual retail price)	—
Models	SM-S918B, SM-S918B/DS, SM-S918U, SM-S918U1, SM-S918W, SM-S918N, SM-S9180, SM-S918E, SM-S918E/DS	Galaxy S26 Ultra 5G, SM-S948B, SM-S948B/DS, SM-S948U, SM-S948U1, SM-S948W, SM-S948N, SM-S9480, SM-S948E, SM-S948E/DS
Price in Nigeria	₦1,300,000 (Seller price)	₦1,337,200 (Seller price)

SECURITY1 field

Specification	Galaxy S23 Ultra	Galaxy S26 Ultra
Security	Biometric security: Fingerprint (under display, ultrasonic).	Samsung Knox, Knox Vault