K7 Smart Band · Designed to disappear
K7 SMART BAND

Technology you
barely feel.

A screenless smart band engineered for quiet intelligence. The hidden LED display appears when you need it, then disappears into a clean 4 mm profile.

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MINIMAL BY DESIGN.INTELLIGENT BY NATURE.
K7 SMART BAND
K7 smart band with hidden LED display on a wrist
RAISE-TO-WAKE DISPLAY
Invisible at rest.
Visible on demand.
4 mmULTRA-THINCurved dial profile
24.4 gLIGHTWEIGHTBuilt for all-day wear
5–7 dBATTERY LIFEMagnetic charging
IP68PROTECTIONWater & dust resistant
The K7 experience

Less device.
More life.

We removed the bulk and kept the intelligence: a discreet display, continuous health sensing and a form factor designed to disappear into daily life.

Invisible when idle.
Visible when needed.

The hidden LED display stays out of sight until you raise your wrist. Essential information appears for a moment, then the band returns to its clean, screenless form.

  • Hidden LED display with raise-to-wake interaction
  • Screenless surface with a precise, low-profile finish
  • Quiet technology for uninterrupted everyday wear
K7 smart band worn on wrist — raise to wake the hidden LED display
FORM FACTOR4 mmultra-thin dial
MASS24.4 glightweight wear
SIGNAL SET24 / 7health sensing
CONFIGURATION7 × 5dial × strap options

4 mm Ultra-Thin Dial

A curved metal dial that hugs the wrist with no bulge or pressure.

Featherweight Feel

Around 24 grams — wear it all day and all night without noticing.

Week-Long Battery

33 mAh cell with magnetic charging — up to 5–7 days per charge.

IP68 Water Resistance

Sealed against dust and water — safe for hand-washing, rain and workouts.

Bluetooth Connectivity

Stable wireless pairing with Android 9.0+ and iOS 10.0+ devices.

OEM Customization

7 dial finishes × 5 strap colours — or make it yours with your own branding.

Health, simplified

Signals in. Clarity out.

Your body never stops — neither does K7. It logs the signals that shape how you feel, then turns them into clear, useful insights.

Heart Rate

All-day dynamic trends with full history, so you always know your baseline.

Blood Oxygen

Track your SpO₂ over time and spot changes before they become a concern.

Sleep

Sleep stages, duration and a clear nightly score — every night, decoded.

Activity

Steps, distance, calories and multiple sport modes for any routine.

85BPM HEART RATE
99%SPO₂ BLOOD OXYGEN
7h 34mSLEEP DURATION
5,019STEPS TODAY
136KCAL BURNED
3.3KM DISTANCE

Illustrative data shown in the Olaveil companion app.

A clearer view

Your data, organised for action.

One clean app keeps everything in one place — health records, device settings and reminders, all at a glance.

Clear Dashboards

Readable charts for heart rate, sleep, activity and body data.

Flexible Settings

Tune alerts and tracking to match your daily habits.

Multi-Language

Localised interface for users around the world.

OTA Updates

Firmware improvements delivered over the air, no cables needed.

Make it yours

7 dial finishes × 5 straps.
Mix them your way.

The K7 body comes in seven polished metal finishes, and the one-piece strap is available in five colours. Pair any dial with any strap — then make it yours with OEM branding.

K7 smart band colour lineup — five bands on display
K7 smart band in burgundy with white strap
01Burgundy / WhiteA warm expression of K7.
K7 smart band in black with black strap
02Black / BlackQuiet, precise and unmistakable.
Dial finishes7 options
Purple
Green
Pink
Blue
Silver
Black
Magenta
Strap colours5 options
White
Sunset Orange
Blue
Black
Green
Technical specifications

Key specifications

The essentials at a glance.

ParameterSpecification
Product nameK7 Ultra-Thin Smart Band
Dial thickness4 mm
Weight≈ 24.4 g
Water resistanceIP68
DisplayHidden LED · raise-to-wake
BluetoothBluetooth 5.x
Battery33 mAh · 5–7 days usage
ChargingMagnetic charging · ≈ 1.5 h
SensorsHeart rate · Blood oxygen · G-sensor
Companion appOlaveil (Android 9.0+ / iOS 10.0+)
Body colours7 dial finishes · OEM available
Strap colours5 (White / Sunset Orange / Blue / Black / Green)
Operating temperature0–50 °C
Getting started

A simple way to begin.

Start with the product, share what you need and let the next step stay clear.

01

Explore K7

Review the design, finishes and key specifications.

02

Request a sample

Evaluate the product, display and wearing experience.

03

Share your direction

Tell us your quantity, target market and branding needs.

04

Move forward

Discuss the quotation and production requirements with Sundy.

Questions, answered

Everything you need to know.

Is OEM / ODM cooperation available?

Yes. OEM / ODM cooperation is welcome. Share your branding direction and requirements with Sundy.

How many colours are available?

K7 supports 7 dial finishes and 5 strap colours. Selected combinations can be discussed for your product line.

Does the band have a display?

Yes. It uses a hidden LED display with raise-to-wake interaction, keeping the surface discreet when not in use.

Which phones are supported?

The Olaveil companion app supports Android 9.0+ and iOS 10.0+ devices.

How long does the battery last?

Typical usage is approximately 5–7 days. Charging is magnetic and takes approximately 1.5 hours.

Is K7 water resistant?

Yes. The product is rated IP68 and is designed for everyday exposure such as rain, sweat and hand-washing.

Build your next wearable line.

Bring K7 into your product portfolio with samples, OEM branding and a clear path from evaluation to production.

Your sales contact: Sundy · Caeton Sales Team

EmailStart an inquiry by email Phone+86 137 9447 6052 WhatsAppStart a sample / quote chat
Request a Sample & Quote
Request a Sample & Quote