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BD4 Smartwatch with Heart Rate Monitor (Black)
Smartwatches

BD4 Smartwatch with Heart Rate Monitor (Black)

The Borofone BD4 smartwatch connects to Android and iOS devices via Bluetooth and features a 1.69-inch TFT touchscreen with a resolution of 280 240 pixels. Its sensors track heart rate, steps and...

The Borofone BD4 smartwatch connects to Android and iOS devices via Bluetooth and features a 1.69-inch TFT touchscreen with a resolution of 280 240 pixels. Its sensors track heart rate, steps and calories, while its activity modes support running, hiking, various sports and gym workouts.

It supports SMS and app notifications, as well as caller ID. The 200...

See full description See full description

Top specs

  • Battery Life

    Battery life shows how many days the smartwatch can operate without charging.


    It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


    For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


    Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


    The value is especially meaningful when comparing products from the same manufacturer.

  • Display Type

    TFT

    Advancements in LCD technology offer greater clarity and even higher brightness in sunlight compared to standard LCDs, while maintaining realistic color representation.

    However, they consume more energy compared to other types of screens and are heavier and bulkier.

  • Waterproof

    Water Contact

    The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
  • See all
35 99 €
Delivery Wed, 11 Nov - Fri, 13 Nov
14,00 €   shipping cost
Sent from Greece
From seven 5.0 (34)
5.0 (34 reviews)
Greece
3 pieces
See Wearables on the page of seven

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Product report

Description

Description

The Borofone BD4 smartwatch connects to Android and iOS devices via Bluetooth and features a 1.69-inch TFT touchscreen with a resolution of 280 × 240 pixels. Its sensors track heart rate, steps and calories, while its activity modes support running, hiking, various sports and gym workouts.

It supports SMS and app notifications, as well as caller ID. The 200 mAh battery provides up to 2 days of use and up to 7 days of standby time. The black watch is suitable for light contact with water.

  • Display: 1.69-inch TFT touchscreen
  • Display resolution: 280 × 240 pixels
  • Connectivity: Bluetooth
  • Compatibility: Android, iOS
  • Sensors: Pedometer, calorie counter, heart rate sensor
  • Features: SMS, caller ID, app notifications
  • Activities: Various sports and gym workouts, hiking, running
  • Battery capacity: 200 mAh
  • Battery life: 2 days
  • Standby time: 7 days
  • Water resistance: Suitable for light contact with water
  • Colour: Black

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Black
Screen Size
1.69 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
280x240 pixels
Screen Type
TFT

Screen Type

TFT

Advancements in LCD technology offer greater clarity and even higher brightness in sunlight compared to standard LCDs, while maintaining realistic color representation.

However, they consume more energy compared to other types of screens and are heavier and bulkier.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
-
Case material
-

Features & Functions

Features & Functions
SMS, Caller ID, Application / Calls Notification

Features & Functions

SMS
The smartwatch can display SMS messages.
Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Misc Sports / Gym, Hiking, Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
Pedometer, Calorimeter, Heart Rate

Sensors

Pedometer

Recording steps and distance.

Calorimeter

Calculates how many calories you have consumed each day.

Heart Rate

Embedded heart rate monitor.
ATM Rating
-

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Water Contact

Waterproof

Water Contact

The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
MIL-STD-810
No

Battery

Battery Capacity
200 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
2 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
7 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
-
Weight
-

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (1)

Reviews

1.0
1
1.0
Review this product
  1. 5 stars
    0
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Kostas_Giannakoyras
    1
    Kostas_Giannakoyras

    The most useless thing I have purchased. I bought it from a store and in 4 days the screen stopped working. I returned it, they gave me a new one and again in 5 days the screen stopped working. Now I will go and see what they will tell me about this. During the few days it worked, the button is constantly pressed when you open your wrist and the background on the screen constantly changes. Stay away

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Limited number of features
    • Inaccuracy in measurements
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • Kostas_Giannakoyras
    1
    Kostas_Giannakoyras

    The most useless thing I have purchased. I bought it from a store and in 4 days the screen stopped working. I returned it, they gave me a new one and again in 5 days the screen stopped working. Now I will go and see what they will tell me about this. During the few days it worked, the button is constantly pressed when you open your wrist and the background on the screen constantly changes. Stay away

    Translated from Greek ·
    0
  • See all

Description & Specifications

The Borofone BD4 smartwatch connects to Android and iOS devices via Bluetooth and features a 1.69-inch TFT touchscreen with a resolution of 280 × 240 pixels. Its sensors track heart rate, steps and calories, while its activity modes support running, hiking, various sports and gym workouts.

It supports SMS and app notifications, as well as caller ID. The 200 mAh battery provides up to 2 days of use and up to 7 days of standby time. The black watch is suitable for light contact with water.

  • Display: 1.69-inch TFT touchscreen
  • Display resolution: 280 × 240 pixels
  • Connectivity: Bluetooth
  • Compatibility: Android, iOS
  • Sensors: Pedometer, calorie counter, heart rate sensor
  • Features: SMS, caller ID, app notifications
  • Activities: Various sports and gym workouts, hiking, running
  • Battery capacity: 200 mAh
  • Battery life: 2 days
  • Standby time: 7 days
  • Water resistance: Suitable for light contact with water
  • Colour: Black

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Black
Screen Size
1.69 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
280x240 pixels
Screen Type
TFT

Screen Type

TFT

Advancements in LCD technology offer greater clarity and even higher brightness in sunlight compared to standard LCDs, while maintaining realistic color representation.

However, they consume more energy compared to other types of screens and are heavier and bulkier.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
-
Case material
-

Features & Functions

Features & Functions
SMS, Caller ID, Application / Calls Notification

Features & Functions

SMS
The smartwatch can display SMS messages.
Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Misc Sports / Gym, Hiking, Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
Pedometer, Calorimeter, Heart Rate

Sensors

Pedometer

Recording steps and distance.

Calorimeter

Calculates how many calories you have consumed each day.

Heart Rate

Embedded heart rate monitor.
ATM Rating
-

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Water Contact

Waterproof

Water Contact

The smartwatch is designed to withstand simple contact with water, such as rain droplets or sweat. It is the ideal choice for daily use, offering safety and functionality even in wet conditions.
MIL-STD-810
No

Battery

Battery Capacity
200 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
2 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
7 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
-
Weight
-

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (1)

1.0
1
1.0
Review this product
  1. 5 stars
    0
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Kostas_Giannakoyras
    1
    Kostas_Giannakoyras

    The most useless thing I have purchased. I bought it from a store and in 4 days the screen stopped working. I returned it, they gave me a new one and again in 5 days the screen stopped working. Now I will go and see what they will tell me about this. During the few days it worked, the button is constantly pressed when you open your wrist and the background on the screen constantly changes. Stay away

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Limited number of features
    • Inaccuracy in measurements
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • Kostas_Giannakoyras
    1
    Kostas_Giannakoyras

    The most useless thing I have purchased. I bought it from a store and in 4 days the screen stopped working. I returned it, they gave me a new one and again in 5 days the screen stopped working. Now I will go and see what they will tell me about this. During the few days it worked, the button is constantly pressed when you open your wrist and the background on the screen constantly changes. Stay away

    Translated from Greek ·
    0
  • See all
35,99 €
14,00 €   shipping cost

Borofone