Call Smart Watch VO494 Fitness Tracker Bracelet Smart Watch

VO494 Fitness Tracker: Your 24/7 Health Companion

1. Product Identity & Target End Users

The VO494 is a unisex circular wearable built with integrated microphone and speaker hardware for independent Bluetooth calling, paired with standard optical biometric sensors.

This unit serves two primary customer groups:

1. Retail end users seeking all-day wearables for outdoor fitness tracking, routine wellness monitoring and hands-free daily calling.
2. Cross-border B2B wholesale distributors, private-label brands and mass retail chains sourcing cost-competitive Bluetooth call smart watches for bulk inventory. All performance data in this page comes from standardized laboratory testing. No unsubstantiated performance claims are used.

VO357 Square Fitness Tracker | V206 ECG & PPG Wristband

ISO 22810:2010 Waterproof Standard Reference

Call Smart Watch VO494 Fitness Tracker 

2. Core Hardware Specifications

2.1 Display & Physical Construction

• Screen: 1.39-inch circular HD touch panel
• Case material: Lightweight metal alloy
• Minimum case thickness: 10.1 mm
• Net weight: 28 g (interchangeable straps excluded)
• Standard strap: Hypoallergenic soft silicone, multiple factory color options
• Limitation: Metal mesh and leather straps have zero waterproof performance; remove before all water contact.

2.2 Wireless Connectivity

• Transmission: Low-power BLE Bluetooth
• Supported operating systems: Android 8.0 or newer, iOS 9.0 or newer
• Built-in audio components: Microphone + speaker for two-way voice calls
• Local storage: Onboard flash memory stores call logs, heart rate records and workout data offline
• GPS limitation: No standalone GPS chip. Outdoor movement route recording relies entirely on GPS signal from paired smartphones.

2.3 Power Supply & Charging Specifications

• Battery capacity: 400 mAh rechargeable lithium cell
• Charging type: Magnetic contact charging
• Standard input requirement: 5V/1A USB power adapter
• Full charging cycle: 2 continuous hours
• Standard lab runtime test environment (25℃ ambient temperature): Weekly load: 120 mins Bluetooth calls, 120 mins audio playback, 24h continuous heart rate tracking, 90 mins GPS-linked sports, daily message alerts, 200 screen activations. Actual battery runtime fluctuates based on individual screen brightness, call frequency and sport recording hours.
• Circuit protection: Built-in overcharge prevention; disconnect the watch from power once fully charged.

2.4 Waterproof Standard (ISO 22810:2010 3ATM)

This model passes standardized 3ATM 30-meter splash resistance aging tests. Valid usage scenarios include handwashing splashes, daily sweat exposure and brief shallow pool submersion for light swimming.

Activities that create permanent hardware damage: Deep diving, snorkeling, high-pressure water jet flushing, hot water showers, high-temperature sauna steam exposure.

Long-term daily wear gradually ages internal rubber sealing rings. This process reduces the unit’s splash-proof protective performance over months of use.

3. Biometric Sensors & Wellness Measurement Functions

Disclaimer: All wellness readings are consumer-level reference data only. This wearable is not certified clinical medical equipment. It cannot support medical diagnosis or treatment. Users with persistent irregular vital signs or physical discomfort must consult licensed medical practitioners.

Measurement accuracy is affected by wrist strap tightness, arm hair density, wrist tattoos and surrounding ambient temperature. Heart rate testing reaches 97% accuracy under lab conditions for stationary, walking, running and cycling states.

3.1 Continuous Vital Sign Monitoring

1. 24-hour automatic optical heart rate tracking. Vibration alerts trigger once readings exceed user-set safe thresholds.
2. Intermittent automatic SpO2 blood oxygen detection. The system supports customizable low-oxygen vibration reminders.
3. Multi-stage sleep cycle recording (light sleep, deep sleep). All wellness alerts automatically mute during detected sleep periods.
4. Long-term relative blood pressure trend log storage. Data serves as trend reference only, not clinical diagnostic blood pressure values.

3.2 Motion & Workout Sensor Functions

A built-in acceleration sensor records core workout metrics for all pre-programmed sport modes: Step count, total activity duration, estimated calorie consumption.

Supported sport modes: Walking, running, cycling, hiking, basketball, table tennis, yoga, rope skipping, light shallow-pool swimming.

4. Companion Mobile APP Ecosystem

All offline stored logs synchronize to a dedicated multi-language wellness APP via Bluetooth pairing. Core APP functional modules:

• Real-time bidirectional data sync and permanent cloud backup for historical records
• Weekly and monthly visual dashboards for heart rate, sleep and workout trend analysis
• Mass library of interchangeable digital watch faces
• Remote camera shutter control triggered from the watch screen
• Adjustable threshold parameters for all wellness vibration reminders

5. B2B OEM & ODM Private-Label Customization Program

5.1 Tiered Minimum Order Quantities

1. Laser or silk-screen brand logo marking on watch case: 100 units
2. Pre-printed white-label retail gift packaging: 300–500 units
3. Full OEM service (exterior redesign, firmware parameter adjustment, standard APP rebranding): 1,000 units
4. Deep ODM development (biometric sensor calibration, fully independent branded customized APP): 3,000 units

5.2 All Supported Customizable Items

1. Visual customization: Case logo engraving, exclusive case/strap color matching, custom gift box printing, startup boot animation design
2. Firmware customization: Modify SpO2 and heart rate alert thresholds, disable unused built-in sport or notification functions
3. Software customization: Full white-label APP UI redesign, exclusive brand independent cloud data storage
4. Document customization: Branded user instruction manuals, customized export certification labeling

5.3 Standard Production Lead Times

• Regular prototype sample batches: 10–15 working days
• Expedited fast-track prototype batches: 7 working days
• Mass OEM bulk order production: 30–45 working days after deposit receipt and full artwork confirmation
• Deep hardware and firmware ODM development cycles: 45–60 working days

5.4 Global Export Compliance Certifications

All shipment batches include complete official test documents: CE RED, FCC, RoHS, REACH, GCC, WEEE, ISO9001. These certificates support smooth cross-border customs clearance without third-party re-inspection. All Bluetooth SIG BQB references are removed from page content.

6. Factory QC Standards & Limited Hardware Warranty

6.1 Four-Stage Pre-Shipment Inspection Checklist

1. Silicone strap tensile durability testing
2. 3ATM waterproof sealing cycle aging testing
3. Bluetooth call signal stability calibration
4. Biometric sensor measurement precision calibration
5. Full lithium battery charge-discharge cycle aging load testing Mass production hardware defect rate is controlled at 0.12% across all finished batches.

6.2 12-Month Global Limited Hardware Warranty

Coverage scope: Manufacturing defects on metal watch case, magnetic charging contact and internal circuit modules.

Excluded damage types: Surface paint fading, screen scratches, silicone strap natural aging, hardware damage caused by improper water exposure, overcharging and manual misuse.

7. Frequently Asked Questions

Q1: Can this watch operate fully without a paired smartphone?

Local standalone functions (time display, heart rate tracking, step counting, alarm clock) work without Bluetooth pairing. Two-way Bluetooth calling, GPS outdoor route recording and full cloud data backup require a connected mobile device.

Q2: Is daily swimming or hot bathing allowed with this watch worn?

Brief shallow pool submersion meets the 3ATM standard. Hot water, sauna, diving and long underwater submersion will damage internal sensors and void the hardware warranty. Remove metal or leather straps before any water contact.

Q3: What branding customization services can Vositone provide for private-label brands?

We deliver full one-stop OEM & ODM solutions covering hardware marking, packaging redesign, firmware parameter tuning and exclusive branded mobile APP development. A formal NDA is available to protect all custom project intellectual property.

Q4: What battery runtime data can wholesale buyers use for retail marketing materials?

All published runtime figures derive from controlled lab testing. High screen brightness, frequent voice calls and continuous GPS sport recording will shorten actual daily usage hours. Only lab-verified static data may be used for sales collateral.

VOSITONE Smart Watch General Technical Specifications

Product Dimensions & Weight

All measurements derive from VOSITONE Lab testing data. To begin with, the watch boasts an ultra-slim profile, measuring precisely 10.1mm at its thinnest point (measured from phone surface to shell, excluding sensor area). Furthermore, its lightweight construction weighs merely 28g without the strap. However, it's important to note that final product weight may vary slightly. This variation occurs primarily because of different configurations. Additionally, manufacturing processes significantly affect final measurements. Moreover, different measurement methods may yield slightly different results.

Product Visual Representation

While product images and screen contents are shown for illustrative purposes, several important considerations apply. First and foremost, actual product appearance may differ in terms of color, size, and finish. Similarly, screen displays may vary regarding backgrounds, UI elements, and images. Most importantly, all watch face designs represent original artistic creations. Consequently, full copyright belongs exclusively to VOSITONE.

Health Monitoring Features

Heart Rate Accuracy

Lab tests demonstrate exceptional performance. Specifically, accuracy exceeds 97% at 10bpm. The testing covered numerous scenarios including, but not limited to, sedentary activities like sitting and reading, as well as various exercises such as treadmill use, running, walking, and cycling. Nevertheless, actual accuracy may vary due to several factors. Primarily, individual physiological differences play a role. Additionally, usage habits and patterns affect results. Finally, environmental conditions can influence measurements.

Blood Oxygen Monitoring

SpO2 measurements effectively track oxygen saturation levels. Essentially, this measures the percentage of oxygen-carrying hemoglobin in the blood. The system provides intermittent periodic readings rather than continuous monitoring. For optimal results, users should wear the watch snugly and properly. Moreover, keeping the arm steady during measurements improves accuracy. However, multiple factors can affect readings, including low blood perfusion, arm hair, tattoos, improper positioning, and cold temperatures.

Key operational notes include:

• Users must first enable automatic detection in the app
• When oxygen levels drop below the set threshold, the watch provides vibration alerts
• However, these alerts remain disabled during sleep periods

Medical Disclaimer

This product serves exclusively for health management purposes. Importantly, it is not classified as a medical device. All provided data serves merely for reference. Specifically, the information is not intended for medical diagnosis. Therefore, it should never serve as a basis for treatment decisions. For any medical concerns, users should always consult qualified healthcare professionals.

GPS Functionality(If Applicable)

The watch offers robust positioning features. In particular, it supports detailed GPS tracking through the companion app. Laboratory tests have thoroughly validated this performance. However, real-world performance depends on several factors. Environmental conditions represent a primary consideration. Similarly, individual usage habits affect results. Finally, signal interference can impact accuracy.

Water Resistance

The watch meets specific water protection standards. Specifically, it carries a 3ATM rating (30m per ISO 22810:2010). Accordingly, it's suitable for pool and shallow water activities. However, important restrictions apply. The device is not suitable for diving or snorkeling. Users should also avoid high-pressure water exposure. Furthermore, metal and leather straps lack waterproofing.

Critical notes regarding water resistance:

• Protection degrades gradually over time
• Therefore, users should consider alternative straps for swimming
• Additionally, regular inspection of seals is recommended

Charging & Battery Performance

Charging Requirements

Laboratory testing established these specifications at 25°C with 45-80% relative humidity. The device requires a minimum 5V/1A charger. Moreover, it performs best with original charging accessories. However, actual performance may vary due to several factors. Product differences represent one consideration. Similarly, usage patterns affect charging efficiency. Finally, environmental conditions play a role.

Battery Life Estimates

The typical usage scenario includes:

• 120 minutes of Bluetooth calls weekly
• 120 minutes of music playback weekly
• Continuous heart rate monitoring
• 90 minutes of GPS workouts weekly
• Daily notifications
• 200 screen activations daily

Notably, standalone GPS mode operates with separate runtime. Ultimately, actual battery life depends entirely on individual usage patterns and conditions.

System Requirements

The watch requires minimum supported versions:

• Android 8.0 or higher
• iOS 9.0 or higher
  Before purchasing, users should carefully verify their device's compatibility.

*Important Health Notice*

All health-related features serve specific purposes. They are designed exclusively for wellness tracking. While they provide valuable personal health insights, they are not intended for medical diagnosis. Consequently, they should never be used for treatment purposes. For any medical concerns, users must consult qualified healthcare professionals.

All specifications derive from VOSITONE Lab controlled testing. However, real-world performance may vary significantly based on usage conditions and individual factors.