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Naxius SB-21 Blue
Activity Trackers

Naxius SB-21 Blue

Key features:

  • Measures blood pressure
  • Calorie calculation
  • Sedentary reminder
  • Alarm clock

Simple operation with a single touch. Connect via Bluetooth to Android and iOS smartphones. Display caller ID or name. Remote camera shutter for taking photos.

See full description

Top specs

  • Sensors

    Pedometer

    Recording steps and distance.

    Accelerometer

    This sensor allows the device to perceive changes in acceleration. For example, with this sensor it can count the steps we take when wearing it.

    Heart Beat Monitor

    Integrated heart rate monitor.

    Sleep Monitoring

    Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)

  • Features

    Inactivity Reminder

    Notifications for prolonged inactivity. Ideal for office work and sedentary lifestyle, it reminds us to move regularly to improve our health.
  • See all
25 00 €
25 Coins 25 Coins
Delivery by Thu, 15 Oct
2,50 € to a Skroutz Point
Do you want it with Free shipping?
From e-Lysis
Γύθειο Λακωνίας, Λακωνίας
In-store pickup available
1 piece
See Wearables on the page of e-Lysis
What if it breaks?

You're covered by the statutory 2-year warranty. Contact us and we'll handle the entire process with the store, ensuring your issue is resolved with prompt support through a repair, replacement, or refund.

What if I change my mind?

No problem, as long as it's within 14 days. We'll come pick it up or you can choose the Skroutz Point that suits you, completely free for up to 2 times per year, and we'll refund your money. Get Skroutz Plus to enjoy unlimited free returns.

Do you want to gift it?

You select "Gift order" in the cart. We do not include a receipt in the package and provide an electronic exchange card, just in case.

  • Extended warranty

    Mechanical or electrical failure of a component necessary for the device's operation/safe use - the same failures already covered by the original manufacturer's warranty, simply extending it by 1 year.

    • +Valid for 1 year
    • With the reliability of Allianz Partners
    Learn more
You can select additional services after adding the product to the cart.
Product report

Specifications

Specifications

Technical Specifications

Colour
Blue
Screen Size
0.96 "

Screen Size

The screens of activity trackers are usually 0.5-1.5 inches, with most having ~1 inch and above.
Screen Type
OLED

Screen Type

The two main categories are IPS and AMOLED.

2. The type of screen affects how vivid or realistic the colors are, how bright and easy to use outdoors in the sun, how distorted the image is when viewed at an angle, and how much battery it consumes.

OLED
They perform better in darker spaces, with almost perfect black rendering, natural images and high color accuracy. Lower battery consumption compared to LCD/IPS.
Compatibility
Android, iOS
Connection
Bluetooth

Connection

Bluetooth

The way to connect the activity tracker to our mobile phone.

Features & Functions

Use
Walking

Use

The activity tracker has the ability to record the corresponding activity and produce relevant statistics. (e.g. for running by measuring the distance)
Features
Inactivity Reminder

Features

Inactivity Reminder
Notifications for prolonged inactivity. Ideal for office work and sedentary lifestyle, it reminds us to move regularly to improve our health.

Additional Specifications

Sensors
Pedometer, Accelerometer, Heart Beat Monitor, Sleep Monitoring

Sensors

Pedometer

Recording steps and distance.

Accelerometer

This sensor allows the device to perceive changes in acceleration. For example, with this sensor it can count the steps we take when wearing it.

Heart Beat Monitor

Integrated heart rate monitor.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
Waterproof
Splash Proof

Battery

Battery Capacity
90 mAh

Battery Capacity

Most activity trackers have a battery capacity of around 100mA. The size of the battery is not always indicative of its autonomy, as this largely depends on the characteristics of the activity tracker and the functions we have active. For example, an activity tracker 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 activity tracker.
Standby Time
240 hrs

Standby Time

The amount of time an activity tracker can operate in standby mode, simply connected to a mobile phone with one charge, varies depending on what each manufacturer defines as standby mode. The average is 10 days, but size becomes meaningful mainly in comparing products from the same manufacturer.
Operation Time
96 hrs

Operation Time

The amount of time an activity tracker can operate with basic functions activated on a full charge. An average is 7 days, but it depends on what each manufacturer defines as standby mode. The size makes sense mainly in comparing products from the same manufacturer.

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 (2)

Reviews

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

    In the two days, it turned off and never turned on again.

    Translated from Greek ·
    • Comfort
    • Easy-to-read screen
    • Material quality
    • Value for money
    • Battery life
    Did you find this review helpful?
  • 1
    thwmakis_tselakis

    Verified purchase

    • Inaccuracy in measurements
    • Battery life
    • Limited number of features
    • Comfort
    • Material quality
    • Value for money
    • Easy-to-read screen
Questions (1)

Questions

6 users have this product and can help you

Ask for the product
thwmakis_tselakis

Συγνώμη πως φορτιζει το ρολόι? Προσπαθώ να φορτίσω αλλα δεν μπορω... Ευχαριστώ και συγνωμη...

thwmakis_tselakis 2023-09-11
ALεkΟς

αν κοιταξεις απο πισω σου εχει ενα σημαδι απο εκεινη τη μερια βγαζεις το λουρακι και ειναι θυρα usb

ALεkΟς 2023-11-10
1 Reply Reply to
See all questions (1)

Specifications

Technical Specifications

Colour
Blue
Screen Size
0.96 "

Screen Size

The screens of activity trackers are usually 0.5-1.5 inches, with most having ~1 inch and above.
Screen Type
OLED

Screen Type

The two main categories are IPS and AMOLED.

2. The type of screen affects how vivid or realistic the colors are, how bright and easy to use outdoors in the sun, how distorted the image is when viewed at an angle, and how much battery it consumes.

OLED
They perform better in darker spaces, with almost perfect black rendering, natural images and high color accuracy. Lower battery consumption compared to LCD/IPS.
Compatibility
Android, iOS
Connection
Bluetooth

Connection

Bluetooth

The way to connect the activity tracker to our mobile phone.

Features & Functions

Use
Walking

Use

The activity tracker has the ability to record the corresponding activity and produce relevant statistics. (e.g. for running by measuring the distance)
Features
Inactivity Reminder

Features

Inactivity Reminder
Notifications for prolonged inactivity. Ideal for office work and sedentary lifestyle, it reminds us to move regularly to improve our health.

Additional Specifications

Sensors
Pedometer, Accelerometer, Heart Beat Monitor, Sleep Monitoring

Sensors

Pedometer

Recording steps and distance.

Accelerometer

This sensor allows the device to perceive changes in acceleration. For example, with this sensor it can count the steps we take when wearing it.

Heart Beat Monitor

Integrated heart rate monitor.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
Waterproof
Splash Proof

Battery

Battery Capacity
90 mAh

Battery Capacity

Most activity trackers have a battery capacity of around 100mA. The size of the battery is not always indicative of its autonomy, as this largely depends on the characteristics of the activity tracker and the functions we have active. For example, an activity tracker 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 activity tracker.
Standby Time
240 hrs

Standby Time

The amount of time an activity tracker can operate in standby mode, simply connected to a mobile phone with one charge, varies depending on what each manufacturer defines as standby mode. The average is 10 days, but size becomes meaningful mainly in comparing products from the same manufacturer.
Operation Time
96 hrs

Operation Time

The amount of time an activity tracker can operate with basic functions activated on a full charge. An average is 7 days, but it depends on what each manufacturer defines as standby mode. The size makes sense mainly in comparing products from the same manufacturer.

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 (2)

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

    In the two days, it turned off and never turned on again.

    Translated from Greek ·
    • Comfort
    • Easy-to-read screen
    • Material quality
    • Value for money
    • Battery life
    Did you find this review helpful?
  • 1
    thwmakis_tselakis

    Verified purchase

    • Inaccuracy in measurements
    • Battery life
    • Limited number of features
    • Comfort
    • Material quality
    • Value for money
    • Easy-to-read screen
25,00 €
2,50 € to a Skroutz Point