Redmi K80 Ultra: Xiaomi’s Powerhouse Smartphone for 2025
Introduction
In a competitive smartphone market dominated by flagships from Samsung, Apple, and OnePlus, Xiaomi continues to push boundaries with its Redmi series. The Redmi K80 Ultra is the latest addition to Xiaomi’s performance-driven lineup and is designed to offer premium features at a midrange price point. Combining high-end specifications, futuristic design, and cutting-edge display and battery technology, the Redmi K80 Ultra is a device tailored for power users, gamers, and content creators.
This article explores everything you need to know about the Redmi K80 Ultra — from design and display to performance, camera, software, and battery life — all in one detailed overview.
KeyFeatures
- 6.83″ 1.5K OLED Display – With 144Hz adaptive refresh rate and peak brightness of 4000 nits.
- MediaTek Dimensity 9400+ Chipset – Built on 3nm architecture for flagship-level performance.
- 12GB / 16GB LPDDR5X RAM – For ultra-smooth multitasking and gaming.
- Up to 1TB UFS 4.0 Storage – Super-fast read/write speeds.
- 50MP OIS Main Camera – Captures sharp, vibrant images even in low light.
- 8MP Ultra-Wide Camera – Perfect for landscapes and group shots.
- 20MP Front Camera – With AI features and 1080p video support.
- 7410mAh Battery – One of the largest batteries in a mainstream smartphone.
- 100W Wired Fast Charging – Full charge in about 30 minutes.
- Reverse Charging + Bypass Mode – Power other devices or game without heat buildup.
- HyperOS 2.0 Based on Android 15 – With AI-enhanced optimizations.
- IP68/IP69 Rated – Water and dust resistance for added durability.
- Dual Stereo Speakers with Dolby Atmos – Immersive audio for media and gaming.
- In-display Ultrasonic Fingerprint Sensor – Fast and secure biometric access.
- Wi-Fi 7 + Bluetooth 5.4 + NFC – Future-ready connectivity for seamless use.
Special features
| Attributes | Detils |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| Announced | 2025, June 26 |
| Status | Available. Released 2025, June 26 |
| Dimensions | 163.1 x 77.9 x 8.2 mm (6.42 x 3.07 x 0.32 in) |
| Weight | 219 g (7.72 oz) |
| Build | Glass front, aluminum frame |
| SIM | Nano-SIM + Nano-SIM |
| Type | OLED, 68B colors, 144Hz, Dolby Vision, HDR10+, HDR Vivid, 1800 nits (HBM), 3200 nits (peak) |
| Size | 6.83 inches, 114.5 cm2 (~90.2% screen-to-body ratio) |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) |
| Protection | Scratch/drop-resistant glass |
| OS | Android 15, HyperOS 2 |
| Chipset | Mediatek Dimensity 9400+ (3 nm) |
| CPU | Octa-core (1×3.63 GHz Cortex-X925 & 3×3.3 GHz Cortex-X4 & 4×2.4 GHz Cortex-A720) |
| GPU | Immortalis-G925 |
| Card slot | No |
| Internal | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM |
| Dual | 50 MP, f/1.9, 23mm (wide), 1/1.55″, 1.0µm, PDAF, OIS 8 MP, 119˚ (ultrawide), 1/4.0″, 1.12µm |
| Features | Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm jack | No |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct |
| Bluetooth | 5.4, A2DP, LE, LHDC 5 |
| Positioning | GPS (L1+L5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC, GLONASS |
| NFC | Yes |
| Infrared port | Yes |
| Radio | Unspecified |
| USB | USB Type-C |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass |
| Type | Si/C Li-Ion 7410 mAh |
| Charging | 100W wired, PD3.0 Bypass charging |
| Colors | Gray, White, Blue, Green |
| Price | About 310 EUR |
Design and Build
The Redmi K80 Ultra brings a refined, flagship-grade design that strikes a balance between form and function. It features a glass front and back paired with a solid metal frame that gives the device a sturdy, premium feel. The back panel is sleek and clean, showcasing the new “Starry Circle” camera module that subtly elevates the aesthetics of the device.
With its slightly curved edges, slim profile, and matte finish, the phone feels comfortable in hand. The device is rated IP68/IP69, meaning it’s both water- and dust-resistant — a feature that puts it ahead of many phones in its segment.
Dimensions & Weight
- Thickness: ~8.2 mm
- Weight: ~219 grams
It feels substantial without being too bulky, making it ideal for those who value both design and durability.Display
One of the standout features of the Redmi K80 Ultra is its display. The phone is equipped with a 6.83-inch Full-Edge OLED display with a 1.5K resolution of 2772 x 1280 pixels. The screen supports a 144Hz adaptive refresh rate, making scrolling, gaming, and video
- Peak brightness: 4000 nits (ideal for outdoor use)
- Color accuracy: HDR10+, Dolby Vision supported
- Touch sampling rate: 480Hz
- Protection: Dragon Crystal glass
Whether you’re watching HDR content, gaming competitively, or editing photos, the display delivers vivid colors, deep blacks, and fluid visuals.
Performance and Hardware
At the core of the Redmi K80 Ultra lies the MediaTek Dimensity 9400+ processor. Built on a 3nm fabrication process, this chipset brings extreme power efficiency and high performance, rivaling many flagship processors in 2025.
Processor Specs:
- Architecture: Octa-core (1x Ultra Cortex-X4, 3x Cortex-A720, 4x Cortex-A520)
- GPU: Immortalis-G925, designed for top-tier gaming and graphics rendering
- AI Co-Processor: D2 architecture for intelligent image and system optimization
This setup makes the K80 Ultra an ideal device for mobile gaming, multitasking, and advanced computing tasks like video editing and rendering.
RAM and Storage Options:
- 12GB or 16GB LPDDR5X RAM
- 256GB / 512GB / 1TB UFS 4.0 storage
Apps open instantly, games run smoothly on max settings, and background processes are managed with ease.
Cooling System:
To prevent overheating, the phone uses a 3D ice-sealed cooling pump system along with a large vapor chamber for efficient heat dissipation. This ensures stable performance even during extended gaming sessions or heavy usage.
Camera System
The Redmi K80 Ultra features a dual rear camera setup designed to offer flagship-level photography and videography.
Rear Camera Configuration:
- Main Camera: 50MP (1/1.55″ sensor, f/1.8 aperture) with OIS
- Ultra-Wide Camera: 8MP with a 119° field of view
The primary camera captures sharp, vibrant images in all lighting conditions, thanks to pixel-binning technology and advanced computational photography. The ultra-wide lens is suitable for landscape shots and group photos.
Front Camera:
-
20MP selfie camera with AI-beauty enhancements and 1080p video support
Video Recording Capabilities:
- 8K @ 24/30 fps
- 4K @ 60 fps
- Slow motion up to 960 fps
Features like night mode, portrait mode, and AI scene detection are included to enhance image quality and user creativity.
Battery and Charging
One of the biggest highlights of the K80 Ultra is its massive 7410mAh battery — one of the largest found in mainstream smartphones.
Battery Specs:
- Capacity: 7410mAh
- Wired Charging: 100W fast charging
- Reverse Charging: Supported
- Bypass Charging: Direct-to-device charging to reduce heat buildup during gaming or video playback
- With such capacity, the device can easily last 2 full days of moderate use or over a full day of heavy multitasking, gaming, or streaming.
Charging from 0 to 100% takes around 30 minutes, thanks to the fast-charging technology and smart power management features.
Software Experience
The Redmi K80 Ultra runs on Android 15, overlaid with Xiaomi’s HyperOS 2.0.
Software Features:
- Smooth, minimal UI with customizable themes and widgets
- AI-based optimizations for photography, performance, and battery management
- Multi-device collaboration with tablets, smart TVs, and laptops
- Floating windows and split-screen for multitasking
- Advanced privacy tools and security zones
The interface is responsive, polished, and offers a variety of tools for power users and casual users alike.
Audio and Multimedia
The device comes equipped with dual stereo speakers enhanced by Hi-Res Audio and Dolby Atmos. Audio output is rich and balanced, making it a great device for watching movies, playing games, or listening to music.
An advanced X-axis linear motor delivers haptic feedback that enhances gaming and typing experiences.
There is no headphone jack, but the USB-C port supports high-fidelity wired audio.
Connectivity and Sensors
The Redmi K80 Ultra features a wide range of connectivity options to keep you connected and secure:
- 5G Dual SIM (SA/NSA)
- Wi-Fi 7
- Bluetooth 5.4
- NFC
- Infrared Blaster
- USB Type-C 3.2
- In-display ultrasonic fingerprint sensor
- Face Unlock
GPS, GLONASS, BeiDou, and Galileo navigation systems ensure accurate location tracking.
Variants and Pricing
The Redmi K80 Ultra comes in multiple variants based on RAM and storage configurations. While exact prices vary by region, the device is competitively priced in the mid-flagship range.
Expected Price (varies by market):
- 12GB + 256GB: $499 – $549
- 16GB + 512GB: $599 – $649
- 16GB + 1TB: $699+
The device is expected to launch first in select Asian markets before expanding globally, potentially under a different branding (such as Poco F7 Ultra in some regions).
Pros and Cons
Pros:
- Stunning 144Hz OLED display
- Massive 7410mAh battery
- Flagship-tier performance
- Ultra-fast 100W charging
- Premium build and IP68/IP69 rating
- Excellent camera and 8K video support
Cons:
- No wireless charging
- Large size may not suit everyone
- No headphone jack
- Limited global availability at launch
summary
The Redmi K80 Ultra is a power-packed smartphone that delivers incredible value. With a high-refresh OLED display, industry-leading battery size, super-fast charging, and strong camera capabilities, it caters to users who demand flagship-level features without the flagship price tag.
Whether you’re a gamer, a content creator, or someone who simply wants a reliable phone with top specs and long battery life, the K80 Ultra is a strong contender. Xiaomi has successfully blurred the lines between premium and midrange with this device — proving once again that performance doesn’t have to come with a premium price.