Cardio 40E - Sports Watch Bryton - Free user manual and instructions

Product Type	Sports Watch
Brand	Bryton
Model	Cardio 40E
Display	1.28-inch color LCD
Dimensions (Case)	45 x 45 x 13 mm
Weight	50 g
Battery Type	Rechargeable lithium-ion
Battery Life	Up to 14 days in smartwatch mode, up to 24 hours with GPS
Water Resistance	5 ATM (50 meters)
GPS	Built-in GPS + GLONASS
Heart Rate Monitor	Optical heart rate sensor
Activity Tracking	Steps, distance, calories, sleep, heart rate
Sport Modes	Running, cycling, swimming, hiking, and more
Connectivity	Bluetooth 4.0
Compatible OS	iOS and Android
Charging Method	USB clip charger
Memory	Up to 200 hours of activity data
Care & Cleaning	Wipe with a soft, damp cloth. Avoid harsh chemicals.
Safety	Not a medical device; consult doctor for health metrics.
Spare Parts & Repairability	Contact Bryton support for replacement straps or battery service.
General Information	Designed for outdoor and fitness enthusiasts.

Frequently Asked Questions - Cardio 40E Bryton

How do I pair the Cardio 40E with my smartphone?

Download the Bryton Active app on your smartphone, enable Bluetooth, and follow the in-app pairing instructions. The watch will appear as "Bryton Cardio 40E" in the list.

Is the watch waterproof?

Yes, it has a 5 ATM water resistance rating, meaning it is suitable for swimming and shallow water activities up to 50 meters. However, it is not designed for scuba diving.

How long does the battery last?

In smartwatch mode with heart rate monitoring, the battery lasts up to 14 days. With continuous GPS tracking, it lasts up to 24 hours.

Can I use the watch without a smartphone?

Yes, the Cardio 40E can function as a standalone sports watch for tracking activities, but syncing data and receiving notifications require a smartphone with the Bryton Active app.

How do I charge the watch?

Use the provided USB clip charger. Attach the clip to the contacts on the back of the watch and connect the USB end to a computer or wall adapter. A full charge takes about 2 hours.

Does the watch support heart rate monitoring during swimming?

Yes, the optical heart rate sensor can track heart rate during swimming, but accuracy may be reduced due to water interference. The watch records swimming metrics like laps and strokes.

How do I reset the watch?

To perform a factory reset, go to Settings > System > Reset on the watch. Confirm the action. This will erase all user data.

Can I customize the watch face?

Yes, you can change the watch face via the Bryton Active app. The app offers several pre-designed faces to choose from.

What should I do if the touchscreen is unresponsive?

Ensure the screen is clean and dry. Restart the watch by holding the power button for 10 seconds. If the issue persists, contact Bryton support.

Is the Cardio 40E compatible with cycling sensors?

Yes, it supports ANT+ and Bluetooth sensors such as cadence, speed, and power meters. Pair them through the settings menu.

USER MANUAL Cardio 40E Bryton

SAT 05/05 10:30 AM Cardio 40 User's Guide bryton

Cardio 40

1 SAT 05/05 10:30 AM 2 brylan 3 OK CAP

1 Light / Power (\*)

Press and hold to turn the • device on or off.

Press to turn on or off the • backlight.

2 Back (D)

Pr• ess to return to the previous page or cancel an operation.

In Training mode, press to • pause or stop recording log. While the recording is paused, press again to stop.

3 OK (OK)

In Clock view, press to • enter the menu mode. In Menu, press to enter or • confirm a selection. When recording, press to • mark the lap.

4 Up (▲)

In Menu, press to move up to scroll through menu options. Press and hold to fast scroll up through menu options.

5 Down (▼/□)

In Menu, press to move down to scroll through menu options. Press and hold to fast scroll down through menu options. In meter view, press to switch meter screen page.

Getting Started

Turn On/Off

Press and hold to turn the device on or off.

Reset

To reset the device, press and hold all three keys (OK/▼) at the same time.

Initial Setup

When turning the device on for the first time, the setup wizard appears on screen. Follow the instructions to complete setup.

1. Select the display language.
2. Select the unit of measurement.
3. Enter your "user profile". It is recommended to input the data. Data accuracy will highly affect your training analysis.
4. Read and accept the Safety Agreement.

Connect, Sync, and Charge

1. Connect the device to a PC using the supplied USB charging clipper.
2. Download the Bryton Bridge 2 application at brytonsport.com and sync with the device.

brytonsport.com 10:30.

Keep the device connected to the PC to charge the battery. Attach the USB charging clipper onto the device and plug the other end to a PC.

Note:

For first time use, charge the battery • for about 3 hours.

Please send the watch back to local distributor for any battery issues.

Improper battery replacement may cause an explosion. When replacing a new battery, use only the original battery or a similar type of battery specified by the manufacturer.

Disposal of the used batteries must be carried out in accordance to the regulations of your local authority.

For better environmental protection, waste batteries should be collected separately for recycling or special disposal.

View Status Bar

GPS G GPS on/off status GPS Fixed Battery level Sensors are successfully linked to Cardio 40 Recording indicator Meter mode

Icons

iconDescription
GPS Signal Strength
	No signal
	Poor *
	Fair **
	Good **
GPS Positioning Status
	No signal (not fixed)
	Weak signal
	Strong signal
	Heart Rate Sensor Active

iconDescription
	Training mode
	Meter mode
	Log Record in Progress
	Recording is paused
Power Status
	Full battery
	Half battery
	Low battery

Note:

Only the active icons are displayed on the screen.

* Please go to an open area for better reception.

** When blinking, please wait until it stops blinking.

Clock View

Current day SAT 05/05 Current date Time 1 (local time) Time 2 (alternate time) 10:30 AM 04:30 AM Alarm icon Reminder icon

Set Time

1. Press ▼ to enter the menu mode.
2. Press ▲/▼ to select Settings > Watch > Time > Set Time 1 or Set Time 2 and press OK to enter its submenu.
3. Press ▲/▼ to select the desired setting and press OK to confirm.

Time Set Time 1 Set Time 2 OFF

Set Alarm (Time1)

1. In Menu, press ▲/▼ to select Settings > Watch > Alarm and press OK to enter its submenu.
2. Press ▲/▼ to select the desired setting and press OK to confirm.

Alarm Set Alarm: AM 08:00 Switch: ON

Note: To enable the alarm, select Settings > Watch > Alarm > Switch > On.

Exercise/Training

During exercise or training, Cardio 40 allows you to measure and record your running activities and displays your current performance.

Note: Displayed information varies on exercise mode and user preference.

Ready for Simple Training

1. Press ▼ to enter the menu mode.

2. Press ▲/▼ to select Train & Test and press OK to enter Training menu.

3. To set a simple workout, select To Plan > Simple > By Time, By Distance, or By Calorie.

4. Set the training target and press OK to confirm.

Note: Select Yes to save the workout. To perform the workout, go to Train & Test > My Workout.

1. Enter the workout name using the on-screen keyboard.

When finishing the name, choose END to save the workout name.

03:48 PM 01/04 Running Train & Test View History Settings

Simple By Time By Distance By Calorie

Simple Save to my workout? Yes

Customize Workouts

To set a customize workout, select Train & Test > To Plan > Customize > Add New. Then set the training target and press OK to confirm.

graph TD
    A["To Plan\nSimple\nInterval\nCustomize"] -->|OK| B["Customize\nAdd new step"]
    B -->|OK| C["Work\nDuration\nTarget\nOK"]
    C -->|OK| D["Work\nDuration\nTarget\nOK"]
    D -->|OK| E["Customize\nWork 1\n6'0" 159~171 bpm\nAdd new step"]
    E -->|OK| F["Customize\nSave"]
    F -->|OK| G["Customize\nSave to My Workout?\nYes"]
    G -->|OK| H["Name\nWKT 001\END"]

Note: If user does not enter the workout name, the system will automatically label the file name according to the current date and time.

Bryton Test & Workout

1. In Menu, press ▲/▼ to select Train & Test and press OK to enter Training menu.
2. Press ▲/▼ to select Bryton WKT or Bryton Test and press OK to enter its submenu.

Bryton WKT 20' in Z 1-2 20' Z3 40' easy run Tempo run

Bryton Workout

Bryton Test LTHR MHR 3km Race 5km Race

Bryton Test

1. Press ▲/▼ to select the desired setting and press OK to confirm.

Note: When the 🖱️ icon appears on the screen, press ▲ to skip the current Interval.

1/34 | 85 r 156 147 140 00:05:00

Interval Workouts

To set an interval workout, select Train & Test > To Plan > Interval. Then set the training target and press OK to confirm.

graph TD
    A["To Plan\nSimple\nInterval\nCustomize"] --> B["Interval\nWarm up 10:00\nWork: 06:00 162~172 bpm"]
    B --> C["Interval\nTime\n00:10':00''\n06:00 162~172 bpm"]
    C --> D["Interval\nRecovery\n02:00 120~150 bpm\nRepeat 2"]
    D --> E["Interval\nCool down 10:00\nSave"]

Start / Pause / Stop Exercising/Training

Press • toKstart recording the log.

Press = to pause the recording and press ■ gain to stop the recording.

Note:

During exercising/training, press and hold □ to enter Shortcut menu.

When recording, press ■vice to stop recording.

1/1 | 85 rpm Do you want to stop? Yes 00:05:00

My Lap

To start a Lap workout, select Settings > Exercise > My Lap > Distance or Location and press OK. Then set the training target and press OK to confirm.

Mark Lap

Start an activity first by pressing OK. While recording, press OK to mark lap. When using Lap, the Lap screen will be displayed while you are doing exercise or training.

View History

1. In Menu, press ▲/▼ to select View History and press OK to confirm.

2. Use ▲/▼ to view your history. Choose More for more details.

12/2512:23 00:06:00run 12km 5 m 512kcal 5laps More 2/5

Delete All Exercise/Training Info

1. In Menu, press ▲/▼ to select View History and press OK to confirm.
2. Press ▲/▼ to select Delete All and press OK to enter its submenu. A "Please backup data first. Erase?" message appears on the screen. To delete the data, press ▲/▼ to select Yes and press OK to confirm.

Delete Please backup data first. Erase? Yes

Setting Reminder

1. In Menu, press ▲/▼ to select Settings > Exer. Remind > Time, Distance, Stride Rate, HR, or Pace and press OK to enter the submenu.
2. Press ▲/▼ to set the desired setting and press OK to confirm.

graph TD
    A["Time: Exercise Exer. Remind"] --> B["HR"]
    B --> C["90"]
    C --> D["180"]
    D --> E["Pace"]
    E --> F["7"]
    F --> G["5"]

Cardio 40 User's Guide10

Link Sensors

Use the Link setting to pair sensors to Cardio 40.

1. In Menu, press ▲/▼ to select Settings > Sensors > Heart Rate and press OK to enter its submenu.

Sensors Heart Rate

1. Press ▲/▼ to select More and press OK to enter the selected sensor submenu.
2. When the sensor is successfully connected, the sensor ID will be displayed on the screen. Verify that the sensor ID is correct.

Heart Rate Status: active ID: xxxxxxxxx More

Note: The information on the sensors ID are included in the package.

1. Press ▲/▼ to select the desired option and press OK to confirm. Rescan• : rescan to detect the sensor. Turn Off• (*only if the device has paired with the sensor): disable the sensor.

Sensor Rescan Turn Off

Customize the Display Settings

1. In Menu, press ▲/▼ to select Settings > Exercise > Meter > Meter > Meter 1, Meter 2, Meter 3, or Meter 4 and press OK to enter its submenu.

Note: Lap only has two options (Meter 1 / Meter 2).

1. Press ▲/▼ to select the number of data fields and press OK to confirm.

2. Press ▲/▼ to select the item field that you want to customize, and press OK to confirm the selection.

3. Press ▲/▼ to select the desired setting and press OK to confirm.

Note: After the setting is complete, the Lap screen appears only when Lap function starts.

Personalize User Profile

1. In Menu, press ▲/▼ to select Settings > Profile > User and press OK to enter its submenu.
2. Press ▲/▼ to select the setting that you want to change and press OK to confirm.

Change Backlight Off Settings

1. In Menu, press ▲/▼ to select Settings > General > System > Backlight off and press OK to enter its submenu.
2. Press ▲/▼ to select the desired setting and press OK to confirm.

Backlight off

5 seconds

15 seconds
30 seconds
1 Mins

Enable Key Tone / Alert

In Menu, press ▲/▼ to select Settings > General > System > Key Tone or Alert and press OK to enter its submenu. Then press ▲/▼ to select ON and press OK to enable the setting.

Note: When the alert is set OFF, the sound will go off during workout and free exercise.

Set the Unit/Language

In Menu, press ▲/▼ to select Settings > General > System > Unit or Language and press OK. Then press ▲/▼ to select the desired setting and press OK to confirm.

View GPS

In Menu, press ▲/▼ to select Settings > General > GPS and press OK.

Full Power• : GPS is set on and provide more accurate position but consume more power.

PowerSaving• : GPS is set on. The GPS positioning will be less accurate but battery hours can be last longer.

Specifications

Item Description
Display 1.4" Mono LCD
Physical size 42.9 x	48.4 x 17.7mm
Weight 48 g
Operating temperature	-10°C ~ 50°C
Battery charge temperature	0°C ~ 40°C
Battery life	Up to 14 days in clock modeUp to 8 hours in training mode in open-sky environment
GPS	Integrated high-sensitivity receiver with embedded antenna
RF transceiver	2.4 GHz ANT+ transceiver with embedded antenna
G-Sensor 3-axis acceleration sensor

*Design and specifications are subject to change without prior notice.