---
product_id: 375051665
title: "Fire Boltt INVINCIBLE 1.39\" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking"
brand: "fire-boltt"
price: "€ 0.05"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.nl/products/375051665-fire-boltt-invincible-1-39-amoled-454x454-bluetooth-calling-smartwatch
store_origin: NL
region: Netherlands
---

# 8GB Storage for 1500+ Songs, TWS Music & Calls 1.39" AMOLED 454x454 Display 100 Sports Modes + 24/7 Health Tracking Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking

**Brand:** fire-boltt
**Price:** € 0.05
**Availability:** ✅ In Stock

## Summary

> 🔥 Own the day, every day with Fire Boltt Invincible ⌚

## Quick Answers

- **What is this?** Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking by fire-boltt
- **How much does it cost?** € 0.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/375051665-fire-boltt-invincible-1-39-amoled-454x454-bluetooth-calling-smartwatch)

## Best For

- fire-boltt enthusiasts

## Why This Product

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

## Key Features

- • **Enduring Battery Life:** Stay powered through your busiest days with up to 7 days of regular use and a massive 15-day standby—always ready when you are.
- • **Unmatched Fitness Versatility:** Track every move with 100 sports modes plus continuous SpO2, heart rate, blood pressure, and sleep monitoring for holistic wellness.
- • **Vibrant Always-On AMOLED Display:** Experience crystal-clear visuals with a premium 454x454 resolution that keeps you connected without lifting a finger.
- • **Customizable Style & Smart Alerts:** Choose from 100+ inbuilt and 200 cloud watch faces to match your vibe, while smart notifications keep you effortlessly in the loop.
- • **Seamless Bluetooth Calling & Music:** Make calls and enjoy your favorite playlists directly from your wrist with 8GB storage and TWS earbud pairing—ditch your phone on the go.

## Overview

The Fire Boltt INVINCIBLE smartwatch features a stunning 1.39-inch AMOLED display with 454x454 resolution and always-on functionality. It supports Bluetooth calling, 8GB of onboard storage for over 1500 songs, and TWS earbud connectivity for phone-free music and calls. With 100 sports modes and comprehensive health tracking including SpO2, heart rate, and blood pressure monitoring, it’s designed for active professionals. The watch offers up to 7 days of battery life on normal use and 15 days standby, plus 100+ customizable watch faces, making it a versatile and stylish companion for your busy lifestyle.

## Description

Full description not available

## Features

- ✅ 1.39” AMOLED DISPLAY : Fire-Boltt Invincible has a premium 454*454 Pixel Resolution with 2.5D Full Lamination. It has an ALWAYS ON Display;✅ 【How to activate Bluetooth Calling】- To enable Bluetooth Calling Function, first connect it to the compatible app. Once connected, manually go to the phone's Bluetooth settings and pair (Bluetooth Name: BSW020). On pairing, you will get a notification: Connected for calls..Band Width:20 millimeters.Water resistance depth:1 meters
- ✅ 100 SPORTS MODES : Fire-Boltt Invincible has 100 sports modes;✅ 100 INBUILT WATCH FACES : Fire-Boltt Invincible has 100 Inbuilt watch faces PLUS 200 cloud based watch faces
- ✅ TWS PAIRING : Connect Earpods For Calling and listen to music on the go.;✅ 8GB STORAGE to PLAY & SAVE LOCAL MUSIC : With 8GB Memory Storage Enjoy 1500+ Songs on the Watch
- ✅ SpO2, 24*7 HEART RATE : Track Spo2, Heart Rate, Blood Pressure, Sleep and Meditative Breathing all in one place;✅ BATTERY : Screen Always On Time is 1-2 days, Pure BT Calling usage time 8-10 hours, Pure local music or phone mode music is 6-8 hours, normal use 7 days, Stand By 15 Days; Compatibility : iOS 8.0 or above and Android 5.1 or above
- Human Interface Input: Touch Screenbuttons; Clasp Type: Tang Buckle; Item Type Name: Smart Watch; Compatible Devices: Smartphonetablet; Included Components: 1 Smartwatch, 1 Manual, 1 Magnetic Charger, 1 Warranty Card; Color Name: Amoled Black S; Case Material Type: Stainless Steel; Band Material Type: Silicone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fire-Boltt |
| Manufacturer | Fire-Boltt |
| Model | BSW020 |
| Model Name | BSW020 |
| Product Dimensions | 4.5 x 4.5 x 1.1 cm; 51 g |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Item model number | BSW020 |
| Memory Storage Capacity | 8 GB |
| Operating System | Smartwatch |
| Compatible Devices | Tablet, Smartphone |
| Special Features | Inbuilt Mic & Speaker, Play Music on Watch, 100 Inbuilt Watch Faces, 100 Sports Modes,, SPO2 Blood Oxygen Monitoring, Blood Pressure Monitoring, 24/7 Heart Rate Tracking, Sleep Monitoring, Meditative Breathing, Camera Control, Sedentary Reminder, Alarm, Stopwatch, Weather Update, Turn On Display Motion Gesture, Calories Consumption, 7 Days Battery & 15 Days Stand By, Smart Notifications, IP67 Water Resistant. |
| Mounting Hardware | 1 Smartwatch, 1 Manual, 1 Magnetic Charger, 1 Warranty Card |
| Number of items | 1 |
| Display Technology | AMOLED |
| Standing screen display size | 1.39 Inches |
| Display Type | AMOLED |
| Wattage | 240 Watts |
| Battery Description | lithium-ion |
| Battery Average Life | 15 Days |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery cell composition | Lithium Ion |
| Battery Power Rating | 180 |
| Wireless Type | Bluetooth |
| Connector Type | Bluetooth |
| Device interface - primary | Touchscreen, Microphone, Buttons |
| Material | Silicone |
| Includes Rechargeable Battery | Yes |
| Manufacturer | Fire-Boltt |
| Item Weight | 51 g |

## Product Details

- **Operating System:** Smartwatch
- **Memory Storage Capacity:** 8 GB
- **Special Feature:** Inbuilt Mic & Speaker, Play Music on Watch, 100 Inbuilt Watch Faces, 100 Sports Modes,, SPO2 Blood Oxygen Monitoring, Blood Pressure Monitoring, 24/7 Heart Rate Tracking, Sleep Monitoring, Meditative Breathing, Camera Control, Sedentary Reminder, Alarm, Stopwatch, Weather Update, Turn On Display Motion Gesture, Calories Consumption, 7 Days Battery & 15 Days Stand By, Smart Notifications, IP67 Water Resistant.
- **Connectivity Technology:** Bluetooth
- **Wireless Communication Standard:** Bluetooth

## Images

![Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking - Image 1](https://m.media-amazon.com/images/I/61LxMQkLk3L.jpg)
![Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking - Image 2](https://m.media-amazon.com/images/I/81cEmZZ3UQL.jpg)
![Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking - Image 3](https://m.media-amazon.com/images/I/71jg5YyQb3L.jpg)
![Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking - Image 4](https://m.media-amazon.com/images/I/61dlb8a89sL.jpg)
![Fire Boltt INVINCIBLE 1.39" AMOLED 454x454 Bluetooth Calling Smartwatch ALWAYS ON, 100 Sports Modes, 8GB for 1500+ Songs, Play Music Without Phone on TWS, Spo2 & Heart Tracking - Image 5](https://m.media-amazon.com/images/I/61U7y94N++L.jpg)

## Available Options

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

## Questions & Answers

**Q: Where is the Survice center in Gopalganj bihar**
A: Don't purchase this watch please

**Q: Hello sound quality  for the other person is low on the time of calling so what should i do**
A: yes sound quality low

**Q: I buy this watch today and i connect my mobile with usb storage to save songs but its showing just resources not found plss tell what to do**
A: Properly connect via magnetic connection and change settings to mass storage

**Q: Can it track Menstrual cycle?**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's an excellent smartwatch.
*by M***I on 12 September 2022*

Positives first:1. The watch is big - a bit too big (in my case it covers my entire wrist).2. The user interface is cool and fast.3. There's a selectable watch face for every age group.4. Step count, o2 level and heart rate can easily be verified and seem to be reasonably accurate. Can't comment about other data (sleep pattern) as I have no way of verifying it.The Negatives:1. The strap is short - I have to use the last hole in the strap.2. Strap quality - not so great.3. Watch is non-Android which means it pairs only with its own custom app and no other.4. The app is functional but is missing a very important feature that even cheaper smartwatches have - custom watch face. There is simply no way to add a custom watch face.I haven't yet tried making phone calls /synching contacts or playing music etc.Watch faces:There are two types of watch faces:(a) selectable, 100, high-resolution watch faces and(b), 20 low resolution, minimal display watch faces.You have a choice between analog and digital type watch faces.Whichever high-resolution watch face you select, it is displayed for exactly 30 seconds (unless you tap one of the two buttons). After 30 seconds, the selected low resolution watch face is displayed for a pre-selectable time duration ranging from few seconds to always on. The low resolution watch face is dimmed and displays minimal information.There is NO option for CUSTOM WATCH FACE - (even if you connect it to the app). On some websites they claim custom watch face option is available via 'Da Fit' app. That information is wrong. The Da Fit app does not connect or sync with this watch. In any case, given that high res watch faces are displayed for only 30 seconds, it is the low res watch faces that are really important.The usb cable can be used to charge or connect to the pc for transfer of music or recordings only. You cannot access any other folder in the watch. So, no, you cannot insert your own custom-made watch face or insert a .vcf file (contact list).The usb magnetic charger cable connects smoothly but have to be careful not to touch/move the watch while charging else the cable will easily disconnect.When the idle watch face is displaying, the information on step count is not updated on the display in real time however, it does get recorded in the background. So, if you tap a button and 'wake up' the watch, it will update the step count/heart rate etc.All in all, a good buy. I recommend you also buy an additional charger cable and keep in your vehicle. You might also want to consider a metal strap.Cheers!

### ⭐⭐⭐⭐ Hsjeijfdo
*by S***L on 23 April 2025*

Good

### ⭐ Utter non sense product
*by P***1 on 27 January 2022*

Not sure if it is a seller problem. I had requested for replacement 3 times so far. Waiting for 4th time. All watches i received so far looks like refabrished. I see scratches on sensor dial. Speaker is not clear especially while on call. Other persons are not able to hear my voice louder. Though i keep the watch closer to my mouth. Sleep hours are not tracked atall. Bluetooth automatically connects and diaconnects. Very frustrating. Pulse is not accurate. I cross checked on watch and pulse meter bith at a time. I played shuttle and this activvity is not tracked properly also do not see the activity history on the app. There is no password to lock the watch. No security. Charger easily detaches from watch. Grip is not tight. If you are on always on mode charging hardly lasts for a day. This is just a show off piece for style. Go for it if you want to have stylish look. I bought this in republicday sales offer. Its nit warth it to buy even with offer. There are so many things that needs to be fixed. Though there are more than 100 watch faces all are almost similar with chang in colors. But happy thing is amazon customer care is very understanding and helpful. They helped me each and everytime i escalated the issue by replacement of the product. I feel mainly its seller problem. Selling refrabrished watches as new watch. This is more than chreating. Amazon should not encourage such sellers or especially when reviews are bad for a particular product amd a particular seller. Unfortunately, this product is available only in amazon amd only this seller. I can tell more experiences that i face with this watch. I feel even youtubers have to write a detailed in their blogs by using the product. Rather than giving specifications, features and comparisons.Finally today i received 4th worse. And it much more disappointing. Iys clearly evident its used watch. See attached pics. What more i can say that this is worst exeprience of my life. Retured 4 watches after 3 replacements. Disgusting.

## Frequently Bought Together

- Fire-Boltt Invincible Smart Watch - Black Silver
- Fire-Boltt Ninja Call Pro Plus 1.83" Smart Watch with Bluetooth Calling, AI Voice Assistance, 100 Sports Modes IP67 Rating, 240 * 280 Pixel High Resolution
- Fire-Boltt Phoenix Ultra Luxury Stainless Steel, Bluetooth Calling Smart Watch, AI Voice Assistant, Metal Body with 120+ Sports Modes, SpO2, Heart Rate Monitoring (Gold).

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*