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Samsung Galaxy S24 Ultra

Samsung Galaxy S24 Ultra

Xiaomi Redmi Note 15 Special

Xiaomi Redmi Note 15 Special

Price (USD) $507.90 $190.00
Network
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / HSPA / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International 1, 3, 5, 8, 28, 40, 41
5G bands 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International 1, 3, 5, 8, 28, 40, 78 SA/NSA
Speed HSPA, LTE (CA), 5G HSPA, LTE, 5G
Launch
Announced 2024, January 17 2026, April 02
Status Available. Released 2024, January 24 Available. Released 2026, April 07
Body
Dimensions 162.3 x 79 x 8.6 mm (6.39 x 3.11 x 0.34 in) 164.0 x 75.4 x 7.4 mm or 7.8 mm
Weight 232 g or 233 g (8.18 oz) 178 g or 182 g (6.28 oz)
Build Glass front (Corning Gorilla Armor), glass back (Corning Gorilla Armor), titanium frame (grade 2) Glass front, plastic frame, plastic or eco leather back
SIM · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT · Nano-SIM + eSIM + eSIM (max 2 at a time) - USA · Nano-SIM + Nano-SIM - CN Nano-SIM + Nano-SIM
Features IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus (Bluetooth integration, accelerometer, gyro) Drop resistant up to 1.7m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions IP66 dust tight and water resistant (high pressure water jets)
Display
Type Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak) AMOLED, 68B colors, 120Hz, 3840Hz PWM, 800 nits (typ), 3200 nits (peak)
Size 6.8 inches, 113.5 cm2 (~88.5% screen-to-body ratio) 6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution 1440 x 3120 pixels, 19.5:9 ratio (~505 ppi density) 1080 x 2392 pixels (~388 ppi density)
Protection Corning Gorilla Armor -
Features DX anti-reflective coating -
Platform
OS Android 14, up to 7 major OS updates, One UI 8.5 Android 15, up to 4 major OS updates, HyperOS 3
Chipset Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
CPU 8-core (1x3.39GHz Cortex-X4 & 3x3.1GHz Cortex-A720 & 2x2.9GHz Cortex-A720 & 2x2.2GHz Cortex-A520) Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
GPU Adreno 750 (1 GHz) Adreno 710
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Features UFS 4.0 UFS 2.2
Main Camera
Quad 200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video -
Features Laser AF, LED flash, auto-HDR, panorama LED flash, HDR, panorama
Video 8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS 4K@30fps, 1080p@30fps, gyro-EIS
Dual - 50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Selfie camera
Single 12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF 20 MP, f/2.2, (wide), 1/4"
Features HDR, HDR10+ -
Video 4K@30/60fps, 1080p@30fps 1080p@30fps
Sound
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack No No
Features High-bitrate audio support 24-bit/192kHz Hi-Res audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.3, A2DP, LE 5.1, A2DP, LE
Positioning GPS, GLONASS, BDS, GALILEO, QZSS GPS, GALILEO, GLONASS, QZSS, BDS (B1I+B1c)
NFC Yes No
Radio No No
USB USB Type-C 3.2, DisplayPort 1.2, OTG USB Type-C 2.0, OTG
Infrared port - Yes
Features
Sensors Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer Fingerprint (under display, optical), accelerometer, gyro, compass
Features Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support Virtual proximity sensing
Battery
Type Li-Ion 5000 mAh Li-Ion 5800 mAh
Charging 45W wired, PD3.0, 65% in 30 min 15W wireless (Qi) 4.5W reverse wireless 45W wired 18W reverse wired
Misc
Colors Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange Crimson Reserve Red, Carbon Black, Frosted White
Models SM-S928B, SM-S928B/DS, SM-S928U, SM-S928U1, SM-S928W, SM-S928N, SM-S9280, SM-S928E, SM-S928E/DS -
SAR 1.26 W/kg (head)     0.62 W/kg (body) -
SAR EU 1.06 W/kg (head)     1.30 W/kg (body) -
Price $ 507.90 / € 573.22 / £ 494.00 / ₹ 104,999 About 190 EUR
Our Tests
Performance AnTuTu: 1453497 (v9), 1823822 (v10) GeekBench: 7076 (v6) 3DMark: 4983 (Wild Life Extreme) -
Display 1447 nits max brightness (measured) -
Camera Photo / Video -
Loudspeaker -24.6 LUFS (Very good) -
Battery Active use score 13:49h -
Our Winner

Samsung Galaxy S24 Ultra
4 category wins
Upper Mid segment
VS
Xiaomi Redmi Note 15 Special
2 category wins
Mid Range segment
Head-to-Head Breakdown
Win Performance —
Win Display —
Win Camera —
— Battery Win
Win Charging —
— RAM —
— 5G —
— Price Win
Samsung Galaxy S24 Ultra — Pros & Cons
Pros
  • Adaptive LTPO display technology optimizing power efficiency
  • Higher-tier Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) processor offering substantial compute superiority
  • Dedicated telephoto optical zoom lens for crisp distant shots (missing on Redmi Note 15 Special)
  • Optical Image Stabilization (OIS) for superior low-light and steady video
  • Higher-resolution 200MP main camera (150MP advantage vs Redmi Note 15 Special)
Cons
  • Smaller 5000mAh battery capacity (-800mAh deficit vs Redmi Note 15 Special)
Xiaomi Redmi Note 15 Special — Pros & Cons
Pros
  • Larger 5800mAh battery reservoir (800mAh more capacity than Galaxy S24 Ultra)
Cons
  • Lower primary camera resolution (50MP vs 200MP on Galaxy S24 Ultra)
Our Verdict

Putting the Samsung Galaxy S24 Ultra face-to-face with the Xiaomi Redmi Note 15 Special reveals decisive contrasts in hardware tuning, camera capabilities, and battery endurance.

In terms of compute horsepower and raw silicon throughput, the Samsung Galaxy S24 Ultra commands an evident lead with its Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) architecture. Heavy multitasking, high-framerate 3D graphics, and sustained processor-intensive applications operate with smoother frame rates and superior thermal composure compared to the Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm) inside the Xiaomi Redmi Note 15 Special.

On the visual front, the Samsung Galaxy S24 Ultra establishes an advantage with its vibrant LTPO AMOLED panel at 120Hz. It yields richer saturation, deeper contrast ratios, and superior outdoor sunlight legibility compared to the AMOLED display at 120Hz on the Xiaomi Redmi Note 15 Special.

Photographic versatility is led by the Samsung Galaxy S24 Ultra. Its 200MP primary setup with OIS stabilization and dedicated optical zoom versatility captures superior dynamic range, sharper micro-textures, and more dependable low-light exposures than the 50MP setup on the Xiaomi Redmi Note 15 Special.

Power endurance and charging turnaround lean toward the Samsung Galaxy S24 Ultra, pairing a 5000mAh battery with 45W recharging to ensure lower downtime between intensive usage cycles compared to 5800mAh (45W) on the Xiaomi Redmi Note 15 Special.

Overall Verdict: The Samsung Galaxy S24 Ultra emerges as our recommended champion in this matchup, clinching 4 category wins against 2 for the Xiaomi Redmi Note 15 Special. Users seeking superior overall balance, higher-tier performance, and refined hardware polish will find the Samsung Galaxy S24 Ultra to be the more complete package.