Head to head

Tecno Spark 50s vs Xiaomi Redmi K90 Ultra

Full specification and price comparison for Pakistan, updated 18 Oct 2026.

The short answer

The Xiaomi Redmi K90 Ultra is the stronger phone of the two, scoring 95 against 55 on our combined specification score. It leads on performance, camera and battery & charging. The Tecno Spark 50s is the cheaper of the two at PKR 80,999 against PKR 126,999.

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The verdict

Spec-derived

Xiaomi Redmi K90 Ultra takes it by 39.9 points on our weighted spec score.

Performance Xiaomi Redmi K90 Ultra leads

Gaming score where available, otherwise chipset tier plus usable RAM.

Camera Xiaomi Redmi K90 Ultra leads

Camera Score where available, otherwise sensor resolution and lens count. Megapixels alone do not measure image quality.

Battery & charging Xiaomi Redmi K90 Ultra leads

Cell capacity in mAh weighted with rated wired charging output.

Display Xiaomi Redmi K90 Ultra leads

Pixel density, refresh rate and panel technology.

Memory & storage Xiaomi Redmi K90 Ultra leads

Highest advertised RAM and internal storage configuration.

Value for money Xiaomi Redmi K90 Ultra leads

Combined spec score divided by current Pakistani retail price.

What actually differs

  • Tecno Spark 50s costs PKR 46,000 less.
  • Xiaomi Redmi K90 Ultra packs a 2,000 mAh larger battery.
  • Xiaomi Redmi K90 Ultra charges 55W faster.
  • Xiaomi Redmi K90 Ultra offers 8 GB more RAM.
  • Xiaomi Redmi K90 Ultra ships with 896 GB more storage.
  • Xiaomi Redmi K90 Ultra uses an OLED panel while the other sticks with LCD.

Buy the Xiaomi Redmi K90 Ultra if…

you care most about performance, camera, battery & charging, display, memory & storage and value for money.

Full specification comparison

Specification Tecno Spark 50s Xiaomi Redmi K90 Ultra
Price in Pakistan
Retail price PKR 80,999 Cheaper PKR 126,999
Design & build
Release date October 16, 2026 (announced); expected release date: October 20, 2026 July 2026 (Expected)
Dimensions 167.9 × 79.3 × 8.2 mm Not announced
Weight 210 g Not announced
Water resistance IP64 (dust-tight and protected against water splashes). IP68/IP69 (expected)
Display
Screen size 6.78 inches 6.89 inches Better
Resolution 720 × 1576 pixels 1220 × 2712 pixels (1.5K) Better
Panel type IPS LCD 120Hz refresh rate, approximately 256 ppi, 560 nits brightness. LTPS OLED, 68 Billion 165Hz
Protection Not specified. Not officially confirmed
Performance
Chipset MediaTek Dimensity 6400 (6 nm) Qualcomm Snapdragon 8 Elite (3nm) (Expected)
CPU Octa-core 2 × 2.5GHz Cortex-A76 + 6 × 2.0GHz Cortex-A55 Octa-core
GPU Mali-G57 MC2 Adreno 840 (Expected)
Operating system Android 16 HIOS 16 Android 16 HyperOS 3
Memory & storage
RAM 6GB / 8GB 12GB / 16GB LPDDR5X Better
Internal storage 128GB UFS 2.2 256GB / 512GB / 1TB UFS 4.1 Better
Card slot microSDXC (dedicated slot). No
Camera
Main camera 50 MP, f/1.8, wide-angle, autofocus, LED flash. 50 MP Primary Camera (OIS) 8 MP Ultra-Wide Camera LED Flash, HDR, Panorama
Selfie camera 8 MP, f/2.0, wide-angle. 20 MP Better
Video recording Rear: 1440p@30fps, 1080p@30fps. Front: 720p video recording. Up to 8K (expected)
Battery & charging
Battery capacity Li-Po (non-removable). 6500 mAh Silicon-Carbon Li-Ion 8,000–8,500 mAh (expected) Better
Wired charging 45W wired charging, bypass charging. 100W HyperCharge Better
Connectivity & extras
SIM Dual Nano-SIM Dual Nano-SIM
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be), Dual-Band, Wi-Fi Direct
Bluetooth 5.3, A2DP, LE v5.4
NFC No Yes
Sensors Fingerprint (side-mounted), accelerometer, proximity sensor, compass. Ultrasonic In-display Fingerprint Sensor AI Face Unlock Accelerometer Gyroscope Proximity Sensor Ambient Light Sensor Electronic Compass X-axis Linear Vibration Motor
USB USB Type-C. USB Type-C 2.0, OTG

“Better” marks the higher (or, for price and weight, the lower) figure. It is a specification difference, not a judgement about real-world experience.

Questions people ask

Which is better, Tecno Spark 50s or Xiaomi Redmi K90 Ultra?

Xiaomi Redmi K90 Ultra comes out ahead on our combined spec score, leading by 39.9 points. It wins on performance, camera, battery & charging, display, memory & storage and value for money. Tecno Spark 50s can still be the better buy if your priorities sit elsewhere or if you find it at a lower street price.

What is the price of Tecno Spark 50s and Xiaomi Redmi K90 Ultra in Pakistan?

Tecno Spark 50s is listed at PKR 80,999 and Xiaomi Redmi K90 Ultra at PKR 126,999. That makes Tecno Spark 50s cheaper by PKR 46,000. Retail prices move often, so treat these as indicative.

Which has the better camera, Tecno Spark 50s or Xiaomi Redmi K90 Ultra?

Xiaomi Redmi K90 Ultra scores higher in our camera assessment. Both use comparable main sensors, so day to day results come down to processing.

Which phone has the better battery, Tecno Spark 50s or Xiaomi Redmi K90 Ultra?

Xiaomi Redmi K90 Ultra leads on battery. Tecno Spark 50s carries a 6500 mAh cell and Xiaomi Redmi K90 Ultra a 8500 mAh cell, with 45W and 100W wired charging respectively.

Which is better for gaming, Tecno Spark 50s or Xiaomi Redmi K90 Ultra?

Xiaomi Redmi K90 Ultra is the stronger gaming phone here. Tecno Spark 50s runs the MediaTek Dimensity 6400 (6 nm) while Xiaomi Redmi K90 Ultra runs the Qualcomm Snapdragon 8 Elite (3nm) (Expected).

Related comparisons

Tecno Spark 50s vs Oppo A7 Pro Xiaomi Redmi K90 Ultra vs Oppo A7 Pro Tecno Spark 50s vs Xiaomi Poco X8 Xiaomi Redmi K90 Ultra vs Xiaomi Poco X8 Tecno Spark 50s vs Infinix Note 50 Racing Edition Xiaomi Redmi K90 Ultra vs Infinix Note 50 Racing Edition Tecno Spark 50s vs Infinix Note 40 Pro 5G Xiaomi Redmi K90 Ultra vs Infinix Note 40 Pro 5G

Tools that use this data

Camera Score Tool Battery Score Tool Gaming Performance Checker AI Mobile Recommendation Tool All comparisons

Scores are calculated from the published hardware specification of each device using the same formula for every phone on WhatMobilePK — they are not paid placements and they are not laboratory test results. Prices are indicative Pakistani retail prices and change frequently.