---
product_id: 183462814
title: "4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB)"
brand: "rainbuvvy"
price: "£218.43"
currency: GBP
in_stock: true
reviews_count: 13
category: "Rainbuvvy"
url: https://www.desertcart.co.uk/products/183462814-4g-smart-watch-2-86-inch-screen-android-7-1
store_origin: GB
region: United Kingdom
---

# 2.86" immersive LCD display 4G LTE standalone connectivity 2700mAh long-lasting battery 4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB)

**Brand:** rainbuvvy
**Price:** £218.43
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with the biggest, boldest 4G smartwatch yet!

## Quick Answers

- **What is this?** 4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) by rainbuvvy
- **How much does it cost?** £218.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/183462814-4g-smart-watch-2-86-inch-screen-android-7-1)

## Best For

- rainbuvvy enthusiasts

## Why This Product

- Trusted rainbuvvy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Powerhouse:** 2700mAh battery means less charging, more living.
- • **True 4G Independence:** Make calls & stream apps anywhere without your phone tether.
- • **Massive 2.86" Display:** See more, do more—your wrist just became a mini tablet.
- • **Crystal Clear 5MP Camera:** Capture moments or video chat with sharp, vivid clarity.
- • **Comprehensive Health Tracking:** Heart rate sensor & GPS keep your fitness goals on point.

## Overview

The Rainbuvvy 4G Smart Watch DM100 features a groundbreaking 2.86-inch 640x480 LCD touchscreen, running Android 7.1 with 3GB RAM and 32GB storage. It supports standalone 4G LTE via nano SIM, enabling calls and app use without a phone. Equipped with a 5MP camera, heart rate sensor, built-in GPS, and a robust 2700mAh battery, this IP67 waterproof smartwatch blends smartphone functionality with fitness tracking in a sleek silver design tailored for men.

## Description

Product description Personalized Apps With a large selection of apps for your watch, you can tailor your watch to suit your everyday. Enjoy your playstore apps including facebook, twitter, skype, whatsapp, instagram, youtube, snapchat, messenger, linkedin. With the larger display now you can customize the watch with various logistics apps and restaurant order taking apps. QR Scanner Packed with numerous payment apps on your watch, making a purchase is as easy as a flick of the wrist - no need to take your phone or wallet outside with you. This will reduce the lines at the mall and make the road trip easier without having to carry cash or a big screen phone out of the house. Watch Your Heart Equipped with a heart rate sensor and a built-in heart rate monitor you can check your heart rate during a workout, see your resting, walking, breathe, workout, and recovery rates throughout the day, or take a new reading at any time. Also support sleep monitoring, sports activity tracking. Nano SIM card Enjoy the ultimate freedom of 4G connected experience without having to carry your phone. Whether you are travelling or going for your outdoor activities, your watch keeps you connected. Note: SIM card not included. 2880mAh Large Battery Built in 2880mAh high-capacity rechargeable battery. Long standby time, gives your charger a rest. Chip: MT6739 Memory combination:RAM: 1G/3G ROM: 16GB/32GB Camera: 5MP Black / Silver Support band 2G: GSM：B2 B3 B5 B8 3G: WCDMA ：B1 B2 B5 B8; TD-SCDMA:B34/39 4G: LTE-FDD：B1 B2 B3 B5 B7 B8 B12 B20; LTE-TDD：B38 B39 B40 B41(100MHz) WIFI: Support 2.4G\5G Bluetooth: 4.0 Display: 2.86 inch LCD 480*640 Resolution Capacitive touch screen PLEASE NOTE 1. If there're any questions during using, please don't worry, we will definitely help you solve it. 2. About SIM card a. If your watch is unable to recognize the SIM card, please make sure that the card has been inserted correctly. You will hear a clicking sound when SIM card was inserted correctly. b. All Network frequency bands in the North America: TDD: Band 41(uS)/42(CA); FDD: Band 2/4/5/7/12/13/17/25/26 Network frequency band supported by our smart watch: FDD: Band 2/5/7 Support Operators: iConnect (Choice Phone), AT&T, nTelos, T-Mobile, U.s. Cellular. (Note: Because the network signal of each region is different,please confirm with your local operator before purchasing.) 3. About Connection Find the "Assistant" app on your watch --- Click "Connect Phone" --- Enter the "wiiwatch2" app on your phone --- Click on "connect device" --- "Scan QR code" (You could also refer to page 9 of the manual.) PS: If the connection is unsuccessful, please uninstall the "wiiwatch2" app and clear the Bluetooth pairing record. Then reset the watch and try again. (Clear pairing record: 1.Click "small trash can icon" at the bottom left corner of the QR code page on the watch; 2. Clear the pairing record in the Bluetooth list on the mobile phone.)

Review: Big watch! Awesome Android phone watch. - When I got this watch I was awed on how big it was both the phone and the wrist strap. The phone is solid and the strap is made to last. Besides being a phone it's also a fitness watch. As any device there is a learning curb but it's a no brainer to learn as it's intuitive. Included in the box is a charging dock, mini screw driver, two screen protectors and a simple instruction. The screen is bright enough with an awesome screen/colors and responsive and it has a camera. I placed my phone's nano SIM card and the settings worked automatically (TMobile) though it took awhile for the watch to respond to the network and the APN settings were correct. There are multiple networks that are compatible with it. A warning though, the screws that holds the SIM card cover is miniscule and can easily be lost when you're not careful. I recommend placing a white paper underneath the phone in case the screws falls off the cover so you can easily see it. Since the OS is Android 7.7.1 some apps from the play store will not work such as Netflix but it works with FB Messenger and YouTube Music. Since RAM is limited you have to choose wisely which apps you can load. When I first got the watch the font was small but there are size options under settings. This is an standalone phone and it's not like a Samsung watch in which you can pair with a Samsung phone to make and receive phone calls. I'm still exploring it's capability and so far it's positive. It's a shrunken Android phone or tablet.
Review: Smartwatch - Product didn't work as advertised wouldn't connect to Wi-Fi, hotspot, or Bluetooth. I'm returning the product for a full refund and trying a different brand.

## Features

- BIGGEST SCREEN DISPLAY EVER MADE: Introducing the world's first large screen smart watch. Experience the most immersive and largest display ever. The 2.86 inch ( 640x480) display lets you see more at once.
- FAST NETWORK: With a 4G support build in sim card slot now you can enjoy hands free calls and use various online apps anywhere and anytime on your bigger display.
- CAPTURE YOUR MOMENTS: Save every moment with clarity using your smart watch. Now you can enjoy your video calls and selfies with brightness, details and enhanced clarity.
- WATCH YOUR HEART: Equipped with a heart rate sensor and a built-in heart rate monitor, you can check your heart rate during a workout; see your resting, walking, breathe, workout, and recovery rates throughout the day; or take a new reading at any time.
- LONGER BATTERY LIFE: Give your charger a rest. The 2700 mAh battery eliminates the need for daily charging and helps you keep up with your busy week.
- ✅✅✅Please scan the QR code with your cell phone camera to download the app successfully. No need to search for app on Google Play Store.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YCDGSHZ |
| Additional Features | Camera |
| Age Range Description | Adult |
| Band Color | silver |
| Band Material Type | Silver |
| Battery Capacity | 2700 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Power | 2700 Milliamp Hours |
| Best Sellers Rank | #43,950 in Electronics ( See Top 100 in Electronics ) #893 in Smartwatches |
| Brand | Rainbuvvy |
| Built-In Media | Charger, Smart watch, Watch Band |
| Cellular Technology | 4G |
| Closure Type | Buckle |
| Color | Silver |
| Communication Feature | [Multiple] |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android 6.0 and above or iOS 11.1 and above |
| Connectivity Technology | Wi-Fi |
| Controller Type | Android |
| Customer Reviews | 3.6 out of 5 stars 553 Reviews |
| Display Type | LCD |
| GPS Geotagging Functionality | Built-in GPS |
| Human Interface Input | Touchscreen |
| Item Weight | 0.11 Ounces |
| Manufacturer | Refly |
| Memory Storage Capacity | 32 GB |
| Metrics Measured | optical_heart_rate_sensor, camera |
| Model Name | Rainbuvvy DM100 |
| Model Number | DM100 |
| Operating System | Android 7.1 |
| RAM Memory Installed | 3 GB |
| Resolution | 480*640 |
| Screen Size | 2.86 |
| Shape | Square |
| Sim Card Size | Nano |
| Special Feature | Camera |
| Sport Type | Walking |
| Style Name | Modern |
| Supported Application | Camera, Heart Rate Monitor, Phone |
| Supported Satellite Navigation System | GPS |
| Target Audience | Men |
| Warranty Type | Limited |
| Water Resistance Depth | 1 Meters |
| Water Resistance Level | Waterproof |
| Waterproof Rating | IP67 |
| Wearable Computer Type | Smart Watch |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |
| Wireless Provider | T-Mobile |

## Product Details

- **Battery Capacity:** 2700 Milliamp Hours
- **Battery Cell Composition:** Lithium Polymer
- **Connectivity Technology:** Wi-Fi
- **GPS:** Built-in GPS
- **Memory Storage Capacity:** 32 GB
- **Operating System:** Android 7.1
- **Screen Size:** 2.86
- **Shape:** Square
- **Special Feature:** Camera
- **Wireless Communication Standard:** Bluetooth

## Images

![4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) - Image 1](https://m.media-amazon.com/images/I/61dZOvX8ELL.jpg)
![4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) - Image 2](https://m.media-amazon.com/images/I/81EXs0ZbfIL.jpg)
![4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) - Image 3](https://m.media-amazon.com/images/I/71PShPABUkL.jpg)
![4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) - Image 4](https://m.media-amazon.com/images/I/81K2XU6ZSRL.jpg)
![4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB) - Image 5](https://m.media-amazon.com/images/I/81JEDM23KkL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Does this phone work via Bluetooth connection with cellphone? Or does it only work if it has its own sim card?**
A: Hello. This watch phone can work via both 2 way. 
You can insert a SIM card or connect to WIFI and use it as a independent phone. If you don't want to use the sim card, it can also be connected with your phone and work as a Bluetooth watch.

**Q: My question is if i use the watch with a sim card can i answer calls with my bluetooth headphones so that everyone around me don’t have to hear the co**
A: Yes,you could use the Bluetooth headphones to answer calls.  Other people around you won't hear the sound.

**Q: What the SIM card look like?**
A: It uses a nano SIM card

**Q: Do you know what is the operating system?**
A: Hi, the operating system is Android 7.1.1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Big watch! Awesome Android phone watch.
*by K***I on January 20, 2021*

When I got this watch I was awed on how big it was both the phone and the wrist strap. The phone is solid and the strap is made to last. Besides being a phone it's also a fitness watch. As any device there is a learning curb but it's a no brainer to learn as it's intuitive. Included in the box is a charging dock, mini screw driver, two screen protectors and a simple instruction. The screen is bright enough with an awesome screen/colors and responsive and it has a camera. I placed my phone's nano SIM card and the settings worked automatically (TMobile) though it took awhile for the watch to respond to the network and the APN settings were correct. There are multiple networks that are compatible with it. A warning though, the screws that holds the SIM card cover is miniscule and can easily be lost when you're not careful. I recommend placing a white paper underneath the phone in case the screws falls off the cover so you can easily see it. Since the OS is Android 7.7.1 some apps from the play store will not work such as Netflix but it works with FB Messenger and YouTube Music. Since RAM is limited you have to choose wisely which apps you can load. When I first got the watch the font was small but there are size options under settings. This is an standalone phone and it's not like a Samsung watch in which you can pair with a Samsung phone to make and receive phone calls. I'm still exploring it's capability and so far it's positive. It's a shrunken Android phone or tablet.

### ⭐ Smartwatch
*by K***A on December 4, 2024*

Product didn't work as advertised wouldn't connect to Wi-Fi, hotspot, or Bluetooth. I'm returning the product for a full refund and trying a different brand.

### ⭐⭐⭐⭐⭐ A solid purchase from an outstanding brand.
*by J***A on January 7, 2021*

Let me start by thanking the people Refly. 5 stars all the way. I had an issue with the charger and the response I got from beginning to end was both timely and very satisfactory. Now for the watch. It is surprisingly comfortable giving it size. I wear mine all day with no real issue. The watch does warm up a little bit when watching videos. The only down side to this this watch is that it can't be used for bluetooth calls. You can accept and reject calls from the watch but you can't talk to the caller on the watch. There are two solutions to this problem. One is the obvious get a nano sim from a GSM carrier to make your watch its own mini phone or get some bluetooth ear buds so that when you press accept on the watch you dont need to take you phone out of you pocket or purse. With that said this is a solid purchase and I will definitely check out any additional products from Refly.

## Frequently Bought Together

- Rainbuvvy 4G Smart Watch 2.86 Inch Screen Android 7.1 1GB+16GB 5MP Camera 2700mAh Battery Smartwatch for Men (Silver, 3GB+32GB)
- Puccy 3 Pack Screen Protector Film, compatible with DM100 2.86inch Smartwatch TPU Guard （ Not Tempered Glass Protectors ）, Transparent
- SpeedTalk Mobile $5 Prepaid Smart Watch SIM Card Kit for 5G 4G LTE Smartwatch, Wearables | Triple Cut 3 in 1 Simcard - Standard Micro Nano | No Contract | USA Coverage 30 Days Service

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-18*