Description

COLMI i28 Ultra Smart Watch

Specifications at a Glance – COLMI i28 Ultra Smart Watch Rajshahi TecH

Product Overview

Upgrade your lifestyle with the COLMI i28 Ultra Smart Watch, now available at Rajshahi Tech – your trusted online gadget store in Bangladesh. This sleek and modern smartwatch combines premium design with powerful features to keep you connected, fit, and in control.

Display & Design

The COLMI i28 Ultra features a stunning 1.43-inch AMOLED display with a crisp 466×466 resolution. The screen delivers vibrant colors, sharp text, and excellent brightness, making it easy to view even in sunlight. The round dial design gives it a modern, premium look. It supports Always-On Display (AOD), which allows the time and important info to stay visible without having to wake the watch. The body is crafted from a durable zinc alloy combined with ABS and PC materials, ensuring both lightweight comfort and long-lasting strength. The strap is made from soft silicone and uses a standard 20mm width, making it easily replaceable with other bands.

Performance & Hardware

Under the hood, the watch is powered by the JL7013A6S chipset, designed for efficient performance in wearable devices. It comes with 640 KB of RAM and 256 MB of internal storage, enabling smooth navigation, basic file storage, and support for dynamic watch faces. The optimized hardware ensures low power consumption, extending the battery life even with regular usage.

Bluetooth & Connectivity

The COLMI i28 Ultra supports Bluetooth 5.3, offering a faster and more stable wireless connection. This makes it possible to pair easily with smartphones and use advanced features like Bluetooth calling. Users can make and receive calls directly from the watch, thanks to its built-in microphone and speaker. Notifications for messages, calls, social media apps, and emails are instantly synced and displayed on the watch screen for convenience.

Health & Wellness Features

This smartwatch is equipped with advanced health sensors, including a VC30F heart rate monitoring chip, enabling continuous and accurate heart rate tracking. It also supports SpO₂ measurement for monitoring blood oxygen levels, a key feature for health awareness. The COLMI i28 Ultra tracks sleep patterns, including deep and light sleep phases, helping users improve their sleep quality. Female users can benefit from menstrual cycle tracking and reminders. Additional features include step counting, calorie tracking, sedentary alerts, and multiple sports modes for comprehensive fitness monitoring.

Smart Features

One of the standout features is the ability to make and receive Bluetooth calls right from your wrist. The watch also includes customizable watch faces, multiple menu styles, and smart app notifications. A unique highlight for users in Bangladesh and other Muslim regions is the built-in Muslim prayer (Namaz) time reminder, helping users stay spiritually connected. The smartwatch also offers a stock trend tracker, letting users monitor basic stock updates right from the watch screen. Other handy tools include music controls, camera remote, alarm, calculator, voice assistant, and a “find my phone” function.

Battery & Charging

The COLMI i28 Ultra is powered by a 260 mAh lithium polymer battery, offering an impressive usage time of 5 to 7 days on a single charge under typical use. In standby mode, the battery can last up to 15 days. The watch charges via a magnetic 2-pin charging cable and takes approximately 2 hours to reach full charge. Its battery optimization allows users to enjoy powerful features without constantly worrying about recharging.

Durability & Waterproofing

With an IP68 waterproof rating, the COLMI i28 Ultra is resistant to water, sweat, and dust. It can handle splashes, hand washing, and workouts without issue, though it is not designed for swimming or deep water activities. This makes it highly suitable for daily use, even in outdoor or humid conditions common in regions like Bangladesh.

Compatibility & App Support

The smartwatch is compatible with devices running Android 4.4 or later and iOS 8.0 or later, including Harmony OS devices. Users can sync the watch with their smartphones using the COLMI Fit app, which allows access to health data, watch face customization, and firmware updates. The watch and app support multiple languages, making it accessible to a broad range of users.

Dimensions & Build

The watch body measures approximately 43.5mm in diameter with an 11mm thickness, giving it a compact yet stylish profile. The standard 20mm strap fits comfortably on most wrist sizes and is easily interchangeable. The total weight is light enough for all-day wear, whether at work, during fitness sessions, or while sleeping.

Local Availability & Warranty

In the Bangladeshi market, the COLMI i28 Ultra Smart Watch typically comes with a 6-month warranty when purchased from authorized resellers. It’s available in a variety of strap colors and types, including magnetic options. The price is highly competitive, offering premium features at a budget-friendly cost — a strong value option in the smart wearables segment.

Key Features:

• 1.96″ HD Full Touch Display – Crisp and vibrant visuals

• Bluetooth Calling – Answer calls directly from your wrist

• Multiple Sports Modes – Track running, walking, cycling, and more

• Health Monitoring – Heart rate, SpO2, and sleep tracking

• Long Battery Life – Up to 5-7 days on a single charge

• IP67 Waterproof – Perfect for everyday wear, even in the rain

• Customizable Watch Faces – Match your style every day

 Why Buy from Rajshahi Tech?

✅ 100% Original Products
✅ Competitive Prices in Bangladesh
✅ Trusted by Thousands of Customers
✅ Dedicated Support & After-Sales Service

 What’s in the Box?

• 1x COLMI i28 Ultra Smart Watch

• 1x Magnetic Charging Cable

• 1x User Manual

Frequently Asked Questions – COLMI i28 Ultra Smart Watch | Rajshahi Tech

🔹 1. Is the COLMI i28 Ultra original?

✅ Yes. At Rajshahi Tech, we only sell 100% original COLMI products. Your smartwatch will come with original packaging and accessories, along with our official invoice for authenticity.

🔹 2. Does the COLMI i28 Ultra support Bluetooth calling?

📞 Yes, it supports full Bluetooth calling. You can make and receive calls directly from the watch after connecting it to your smartphone via Bluetooth.

🔹 3. Is the watch waterproof?

💧 Yes, the COLMI i28 Ultra is IP67 waterproof, which means it’s safe from rain, handwashing splashes, and sweat. However, it is not suitable for swimming or submersion in water.

🔹 4. How long does the battery last?

🔋 The watch offers 5 to 7 days of battery life with regular use, and up to 15 days on standby. Battery life may vary depending on features used.

🔹 5. Does it support health tracking?

❤️‍🩹 Yes. It includes:

• Heart Rate Monitoring

• Blood Oxygen (SpO2) Tracking

• Sleep Monitoring

• Step Counter & Calorie Tracker

These features help you stay on top of your health every day.

🔹 6. Is it compatible with Android and iPhone?

📱 Yes. The COLMI i28 Ultra is compatible with both Android (version 5.0+) and iOS (version 9.0+) smartphones. Just download the companion app to sync data.

🔹 7. Can I change the watch faces?

🖼️ Yes! You can customize the look with multiple watch faces via the app. Some models even support uploading your own photos as a watch face.

  COLMI i28 Ultra Smart Watch is now available at Rajshahi Tech at the best price.
100% authentic product with replacement guarantee available.

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