Two devices. One clear decision.

LAUNCH DATE3 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Announced	February 17, 2023	2026, August 11
Released	2023-02-17	2026, August 11
Status	Available	Available

NETWORK6 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
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 800 / 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, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
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	1, 3, 5, 7, 8, 18, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed	LTE, 5G	HSPA, LTE, 5G
Technology	5G/4G/LTE/GSM	GSM / WCDMA / LTE / 5G

BODY5 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Build	Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame	Glass front, Aluminum frame
Dimensions	163.4 x 78.1 x 8.9 mm (6.43 x 3.07 x 0.35 in)	163.5 x 78 x 8.5 mm (6.44 x 3.07 x 0.33 in)
IP Rating	IP68 dust/water resistant (up to 1.5m for 30 min)	IP68/IP69 dust tight and Water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
SIM	Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)	Nano-SIM + Nano-SIM
Weight	234 g (8.25 oz)	238 g

DISPLAY7 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Brightness	1200 nits (HBM), 1750 nits (peak)	4500 nits peak
Protection	Corning Gorilla Glass Victus 2	Xiaomi Dragon Crystal Glass
Refresh Rate	120Hz	185Hz
Resolution	1440 x 3088 pixels, 19.3:9 ratio (~500 ppi density)	1200 x 2608 pixels, 19.5:9 ratio (~416 ppi density)
Screen-to-body	~89.9%	~91.5%
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)	AMOLED

PLATFORM4 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
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 (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Chipset	Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)	Qualcomm Snapdragon 8 Elite Gen 5
GPU	Adreno 740	Adreno 840
OS	Android 13, up to 4 major Android upgrades, One UI 6.1.1	Android; 16; HyperOS 3

MEMORY5 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Card slot	No	No
Internal	256GB, 512GB, 1TB	256 / 512 GB / 1 TB
RAM	8GB RAM, 12GB RAM	12 / 16 GB
Storage Type	—	UFS 4.1
Storage/RAM variants	256GB, 512GB, 1TB; 8GB RAM, 12GB RAM	256 / 512 GB / 1 TB; 12 / 16 GB RAM

MAIN CAMERA3 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Features	Laser AF, LED flash, auto-HDR, panorama	Color spectrum sensor, LED Flash, Panorama, 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 main with OIS; 50 MP telephoto; 50 MP ultrawide
Video	8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS	8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960/1920fps, gyro-EIS, HDR10+

SELFIE CAMERA3 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Features	HDR, HDR10+	HDR
Selfie camera	12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF	32 MP, (wide)
Video	4K@30/60fps, 1080p@30fps	1080p@30fps

SOUND2 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
3.5mm jack	No	No
Loudspeaker	Yes, with stereo speakers	Yes, with Stereo Speakers

COMMUNICATION6 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Bluetooth	5.3, A2DP, LE	6.0, A2DP, LE, LHDC 5.0, ASHA, MIHC, Auracast
NFC	Yes	Yes
Positioning	GPS, GALILEO, GLONASS, BDS, QZSS	Yes
Radio	No	No
USB	USB Type-C 3.2, OTG	USB Type-C 2.0
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct

FEATURES1 field

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass

BATTERY3 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Capacity	5000 mAh	9070mAh
Charging Type	45W wired, PD3.0, 65% in 30 min 15W wireless (Qi) 4.5W reverse wireless	100W wired; 50W wireless; 22.5W reverse wired
Type	Li-Ion 5000 mAh	Non-removable Si/C Li-Ion Battery

ADDITIONAL INFORMATION5 fields

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Colors	Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition	Black, White, Blue, Red (Burgundy)
Compatibility	—	China
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	Redmi K100 Pro Max
Price in Nigeria	₦1,300,000 (Seller price)	₦1,300,000 (Stored estimate)

SECURITY1 field

Specification	Galaxy S23 Ultra	Redmi K100 Pro Max
Security	Biometric security: Fingerprint (under display, ultrasonic).	Biometric security: Fingerprint (under display, ultrasonic).