Xiaomi K90 Pro Max vs. Samsung Galaxy S23+: A Head-to-Head Performance and Value Showdown

The Xiaomi Redmi K90 Pro Max arrives with a bold claim: to deliver flagship performance at a more accessible price point. It challenges Samsung’s established Galaxy S23+ – a refined and polished experience known for its reliability and ecosystem integration. This comparison dissects the core differences, focusing on the new Snapdragon 8 Elite Gen 5 versus the Snapdragon 8 Gen 2, and determines which phone offers the best value for demanding users.
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🏆 Quick Verdict

For the power user prioritizing raw performance and blazing-fast charging, the Xiaomi Redmi K90 Pro Max emerges as the winner. Its Snapdragon 8 Elite Gen 5 chipset and 100W charging significantly outperform the S23+. However, the Samsung Galaxy S23+ remains a compelling choice for those valuing a more polished software experience and longer battery endurance.

PHONES
Phone Names Xiaomi Redmi K90 Pro Max Samsung Galaxy S23+
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands1, 3, 5, 7, 8, 18, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89 SA/NSA1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTE, 5GHSPA, LTE-A (up to 7CA), 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -1, 7, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2025, October 232023, February 01
StatusAvailable. Released 2025, October 23Available. Released 2023, February 17
Body
BuildGlass front (Dragon Crystal Glass), aluminum alloy frame, fiber-reinforced plastic back or silicone polymer backGlass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Dimensions163.3 x 77.8 x 7.9 mm (6.43 x 3.06 x 0.31 in)157.8 x 76.2 x 7.6 mm (6.21 x 3.00 x 0.30 in)
SIMNano-SIM + Nano-SIMNano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
Weight218 g (7.69 oz)196 g (6.91 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min) Armor aluminum frame with tougher drop and scratch resistance (advertised)
Display
ProtectionXiaomi Dragon Crystal GlassCorning Gorilla Glass Victus 2
Resolution1200 x 2608 pixels, 19.5:9 ratio (~416 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~393 ppi density)
Size6.9 inches, 116.6 cm2 (~91.8% screen-to-body ratio)6.6 inches, 105.3 cm2 (~87.6% screen-to-body ratio)
TypeAMOLED, 68B colors, 2560Hz PWM, 120Hz, Dolby Vision, HDR Vivid, HDR10+, 3500 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)
 -Always-on display
Platform
CPUOcta-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
ChipsetQualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
GPUAdreno 840Adreno 740
OSAndroid 16, HyperOS 3Android 13, One UI 5.1
Memory
Card slotNoNo
Internal256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 8GB RAM, 512GB 8GB RAM
 -UFS 4.0
Main Camera
FeaturesColor spectrum sensor, LED flash, HDR, panoramaLED flash, auto-HDR, panorama
Triple50 MP, f/1.7, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP, f/3.0, 115mm (periscope telephoto), 1/2.76", 0.64µm, PDAF (30cm - ∞), OIS, 5x optical zoom 50 MP, f/2.4, 18mm, 102˚ (ultrawide), 1/2.88", 0.61µm50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, Dual Pixel PDAF, OIS 10 MP, f/2.4, 70mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Video8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
Features-Dual video call, Auto-HDR, HDR10+
Single32 MP, f/2.2, 21mm (wide), 1/3.44", 0.64µm12 MP, f/2.2, 26mm (wide), Dual Pixel PDAF
Video4K@30fps, 1080p@30/60fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack -No
35mm jackNo-
Loudspeaker Yes, with stereo speakers (with Dolby Atmos)Yes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.4, A2DP, LE, LHDC 5.0, ASHA, MIHC5.3, A2DP, LE
Infrared portYes-
NFCYesYes
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC, GLONASSGPS, GLONASS, BDS, GALILEO
RadioNoNo
USBUSB Type-C 3.2, Display Port, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compassFingerprint (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
Battery
Charging100W wired, PD3.0, QC3+, 100W PPS 50W wireless 22.5W reverse wireless45W wired, PD3.0, 65% in 30 min (advertised) 15W wireless (Qi/PMA) 4.5W reverse wireless
TypeSi/C Li-Ion 7560 mAhLi-Ion 4700 mAh, non-removable
Misc
ColorsBlack, White, Denim Blue, Lamborgini WhitePhantom Black, Cream, Green, Lavender, Graphite, Lime
Models-SM-S916B, SM-S916B/DS, SM-S916U, SM-S916U1, SM-S916W, SM-S916N, SM-S9160, SM-S916E, SM-S916E/DS
PriceAbout 500 EUR$ 780.00 / C$ 1,399.99 / £ 919.08 / € 1,185.89 / ₹ 94,999
SAR-0.95 W/kg (head)     1.04 W/kg (body)
SAR EU-0.77 W/kg (head)     1.45 W/kg (body)
Tests
Battery life-Endurance rating 111h
Camera-Photo / Video
Display-Contrast ratio: Infinite (nominal)
Loudspeaker--26.5 LUFS (Good)
Performance-AnTuTu: 1234077 (v9) GeekBench: 5073 (v5.1) GFXBench: 110fps (ES 3.1 onscreen)

Xiaomi Redmi K90 Pro Max

  • Significantly faster charging (100W wired, 50W wireless)
  • Potentially superior CPU performance with Snapdragon 8 Elite Gen 5
  • More advanced wireless charging capabilities

  • Battery endurance is unknown and may be lower than the S23+
  • Camera specifications are currently unknown

Samsung Galaxy S23+

  • Excellent battery life (111h endurance rating)
  • Refined software experience and ecosystem integration
  • Likely superior camera system with advanced image processing

  • Slower charging speeds (45W wired, 15W wireless)
  • Less powerful chipset compared to the Snapdragon 8 Elite Gen 5

Display Comparison

While the Galaxy S23+ boasts an 'Infinite' contrast ratio, the context data lacks specific display details for the K90 Pro Max. However, given Xiaomi’s recent flagship displays, we anticipate a high-quality AMOLED panel. The S23+'s display is likely to have a higher peak brightness, benefiting outdoor visibility. The absence of LTPO information for the K90 Pro Max suggests it may not have the same adaptive refresh rate efficiency as the S23+, potentially impacting battery life during prolonged use. Bezels are expected to be comparable, with both aiming for a modern, immersive viewing experience.

Camera Comparison

The provided data doesn’t detail camera specs beyond the existence of a photo/video capability on the S23+. Historically, Samsung Galaxy S-series phones excel in image processing and offer versatile camera systems. The K90 Pro Max’s camera performance is unknown, but Xiaomi has been increasingly competitive in this area. Without sensor size or aperture information, it’s difficult to make a direct comparison. We anticipate the S23+ to offer more refined image stabilization and video recording capabilities, leveraging Samsung’s established algorithms. The absence of detail on the K90 Pro Max’s camera system makes it difficult to assess its capabilities beyond speculation.

Performance

The core battleground is the chipset. The Xiaomi K90 Pro Max’s Snapdragon 8 Elite Gen 5, built on a 3nm process, represents a significant leap in efficiency and performance over the Samsung Galaxy S23+'s 4nm Snapdragon 8 Gen 2. The K90 Pro Max’s Oryon V3 Phoenix CPU architecture (2x4.6 GHz + 6x3.62 GHz) promises superior multi-core performance compared to the S23+'s (1x3.36 GHz Cortex-X3, 2x2.8 GHz Cortex-A715, 2x2.8 GHz Cortex-A710, 3x2.0 GHz Cortex-A510). The 3nm node of the 8 Elite Gen 5 should translate to lower heat generation and less thermal throttling during sustained workloads like gaming. While the S23+ benefits from Samsung’s optimization, the raw power advantage lies with the K90 Pro Max. Both devices likely utilize LPDDR5x RAM, but the K90 Pro Max’s chipset is designed to maximize its bandwidth.

Battery Life

The Samsung Galaxy S23+ boasts an endurance rating of 111 hours, indicating excellent battery life. The K90 Pro Max, while lacking an endurance rating, compensates with significantly faster charging. Its 100W wired charging, supporting PD3.0, QC3+, and PPS, dwarfs the S23+'s 45W charging, promising a full charge in a fraction of the time. The K90 Pro Max also offers 50W wireless and 22.5W reverse wireless charging, far exceeding the S23+'s 15W wireless and 4.5W reverse wireless. While the S23+ may last longer on a single charge, the K90 Pro Max’s charging speed mitigates range anxiety.

Buying Guide

Buy the Xiaomi Redmi K90 Pro Max if you need uncompromising processing power for gaming and demanding applications, and if you value the convenience of incredibly fast wired and wireless charging. Buy the Samsung Galaxy S23+ if you prefer a more refined and consistent user experience, prioritize battery life exceeding 110 hours, and appreciate the seamless integration within the Samsung ecosystem.

Frequently Asked Questions

❓ Will the Snapdragon 8 Elite Gen 5 in the K90 Pro Max overheat during extended gaming sessions?
The 3nm process of the Snapdragon 8 Elite Gen 5 is designed to improve thermal efficiency compared to the 4nm Snapdragon 8 Gen 2. While sustained gaming will generate heat, the K90 Pro Max should experience less throttling and maintain higher frame rates for longer periods. However, real-world testing is needed to confirm this.
❓ How does the 100W charging on the K90 Pro Max compare to the 45W charging on the S23+ in real-world usage?
The 100W charging on the K90 Pro Max will dramatically reduce charging times. While Samsung advertises 65% charge in 30 minutes, the K90 Pro Max is expected to achieve a full charge in under 30 minutes. This is a significant advantage for users who frequently need to top up their battery quickly.
❓ Does the Samsung Galaxy S23+ support frame rate interpolation for smoother gaming?
Samsung's Game Booster software often includes features like frame rate interpolation to enhance the perceived smoothness of gameplay. While not a native hardware feature, it can provide a noticeable improvement in visual fluidity, particularly in games that don't natively run at high frame rates.
❓ Is the lack of detailed camera information for the K90 Pro Max a cause for concern?
It is a valid concern. Xiaomi has been improving its camera performance, but without knowing the sensor size, aperture, and image processing capabilities, it's difficult to assess its competitiveness against the well-established Samsung Galaxy S23+ camera system. We recommend waiting for independent reviews with detailed camera samples.