Call Smart Watch VO514 Fitness Tracker Bracelet Smart Watch

VO514 Large 1.83” Square HD Bluetooth Call Smart Watch – Slim Lightweight 3ATM Sweat Resistant

1. Product Definition, Target Buyers & End-User Scenarios

The VO514 is a cost-effective entry-level square smart watch built around a standout large 1.83-inch HD display for fashion-focused daily communication and lightweight fitness tracking. Furthermore, its core market advantage combines immersive big-screen visuals, stable full Bluetooth calling and a slim, wearable lightweight frame at a competitive mass-market price point.

Notably, this entry fashion model omits advanced multi-vital sensing hardware such as ECG, air-pump blood pressure and continuous body temperature detection. Therefore, it focuses solely on foundational PPG heart rate, blood oxygen and sleep monitoring for casual daily wellness reference.

In addition, this large-screen wearable targets three core groups of B2B wholesale partners. These partners include mainstream fashion fitness accessory distributors, corporate promotional bulk gift suppliers and entry-level private-label wellness brand operators catering to price-sensitive men’s and women’s casual consumers.

Consequently, fashion-conscious all-gender end users select this square watch for everyday connectivity and low-intensity workout tracking. Specifically, it fits office all-day wear, walking, jogging, yoga and simple gym routines without demand for clinical-grade health monitoring features.

Besides, this big-screen Bluetooth call watch expands Vositone’s tiered call-watch product portfolio. Moreover, it complements compact round VO511 entry watches, fashion VO508 models and rugged VO531 outdoor fitness watches to cover every screen size and budget bracket for global bulk sourcing.

In particular, every display, slim chassis and basic PPG sensor lab test data featured on this page originates from standardized factory quality control testing. Therefore, we eliminate vague overhyped marketing language and retain only verifiable entry-level technical metrics for client quotation comparison and batch QC inspection workflows.

2. Verified Core Hardware Specifications

2.1 1.83 Inch Large Square HD Touch Display & Ultra-Slim Lightweight Alloy Case

The watch is equipped with a generous 1.83-inch square HD full-touch panel, significantly larger than standard entry smart watch screens. In addition, balanced adaptive brightness tuning delivers sharp, legible visuals under both indoor ambient lighting and strong direct outdoor sunlight.

Besides, dozens of modern fashion and lifestyle themed watch face templates are preloaded within the device firmware. Custom personalized watch face graphic files can be uploaded easily via the matched multi-language wellness mobile APP.

Thin lightweight alloy material constructs the square main protective frame. Moreover, the ultra-slim 10.1mm body and mere 28g main unit weight drastically reduce long-duration wrist fatigue during all-day office and lifestyle wear.

Notably, the simplified case structure eliminates specialized sensor hardware required for ECG, oscillometric blood pressure and continuous temperature measurement to maintain accessible entry-level retail pricing.

Each VO514 retail package includes one flexible, fully adjustable soft silicone wrist strap. Moreover, multiple on-trend neutral and fashion-forward color stock options align with casual office, streetwear and everyday fitness styling preferences.

2.2 Bluetooth Connection & Cross-Platform Mobile OS Compatibility

The integrated stable low-power Bluetooth chip establishes anti-interference wireless pairing with smartphones. In addition, users may dial new numbers, answer incoming calls and store frequently dialed contact lists directly within local watch memory without phone access.

Notably, this large-screen fitness watch does not incorporate standalone GPS hardware. Therefore, all workout route trajectory logging functions rely entirely on GPS location signals captured from the paired mobile phone inside the wellness APP.

It maintains consistent stable Bluetooth pairing with Android 8.0 and newer mobile smartphones. Moreover, it operates fully functional with iOS 9.0 and above Apple mobile devices.

2.3 Lithium-Polymer Battery & Magnetic Pogo-Pin Charging System

Magnetic automatic attraction aligns the charging connector effortlessly for hassle-free daily recharging. Besides, the semi-sealed charging port blocks everyday surface dust and light sweat ingress to protect internal Bluetooth and basic sensor circuit assemblies over long-term use.

Meanwhile, a complete empty-to-full battery charging cycle takes approximately 2 hours under standardized laboratory testing environments.

The built-in lithium-polymer battery features multi-layer fundamental safety protection circuits. These circuits mitigate risks of overcharging, over-discharging and minor internal electrical short-circuits during daily operation.

2.4 3ATM Daily Sweat & Splash Waterproof Usage Guidelines (ISO 22810 Standard)

Permitted Daily Wear Usage Scenarios

Strictly Prohibited Long-Immersion & High-Temperature Water Scenarios

Moreover, prolonged water soaking and high-temperature steam environments accelerate the natural aging rate of internal waterproof rubber sealing gaskets inside the chassis.

Natural Internal Gasket Aging Reminder

3. Basic PPG Sensor 24H Heart Rate & SpO2 Light Fitness Wellness Tracking Functions

First of all, all automatic and manually triggered heart rate, SpO2 and sleep cycle measurement data serve solely for consumer-level lightweight daily wellness reference purposes only.

In addition, users must not rely exclusively on this watch’s basic vital statistics to judge cardiovascular symptoms or make clinical medical treatment decisions. Consequently, seek formal licensed medical support immediately upon experiencing persistent palpitations, chest discomfort or abnormal physiological vital indicators.

Specifically, key influencing variables include silicone strap wearing tightness, arm hair density, skin tattoos, skin texture and fluctuating indoor or outdoor ambient temperature levels.

The basic integrated PPG optical sensor runs non-stop round-the-clock automatic heart rate and SpO2 sampling throughout all daily activity cycles. Users may also initiate one-off manual spot-check measurements via a single tap on the large square touch screen for real-time instant vital readings.

The streamlined intelligent sleep analysis module automatically records complete overnight rest cycles. It separates light sleep and deep sleep stages to generate simplified daily sleep quality evaluations for casual wellness tracking reference.

3.3 Multiple Low-to-Moderate Intensity Sport Offline Recording Modes

In addition, the watch locally stores workout duration, real-time step counts and total calorie burn data offline without requiring constant active Bluetooth connection to the paired mobile phone.

4. Bluetooth Call Communication System, Daily Auxiliary Tools & Multi-Language APP Cloud Ecosystem

After stable Bluetooth pairing completes, users may make, answer and hang up voice calls directly through the watch’s built-in compact speaker and microphone hardware. Moreover, the watch automatically synchronizes daily local real-time weather forecast data pulled from the linked smartphone.

4.2 Lightweight Built-In Daily Practical Auxiliary Tools

Besides, core available utility tools include Bluetooth music playback remote control for daily commute entertainment.

4.3 Multi-Language APP Cloud Storage & Long-Term Basic Wellness Trend Analysis Reports

Specifically, stored archived datasets include complete daily foundational vital measurement logs, multi-stage overnight sleep records and casual fitness training activity statistics.

Consequently, the built-in cloud backup functionality prevents permanent loss of personal historical basic heart rate and fitness tracking data.

Vositone possesses more than 16 years of wearable device research and mass manufacturing production experience. Furthermore, our standardized factory occupies over 10,000 square meters with complete assembly lines dedicated to basic Bluetooth communication and large-screen touch display testing workflows.

Besides, we hold more than 30 wearable device technical invention patents covering Bluetooth call audio processing and basic PPG vital sensor algorithm development. Meanwhile, the factory maintains an ultra-low 0.12% finished product defect rate following four sequential full QC inspection procedures.

5.1 Tiered MOQ Customization Rules (Entry-Level Large Square Bluetooth Call Watch Line)

• 300–500 units: Custom fashion fitness & corporate gift themed retail gift boxes for small-volume white-label market trial test orders
• 3,000 units: In-depth ODM development: multi-light-sport activity algorithm calibration, basic PPG heart rate & SpO2 sensor parameter optimization, exclusive branded standalone independent wellness mobile APP programming

5.2 Sample Fabrication & Mass Production Lead Time Schedule

In addition, full sample development fees may be fully deducted from subsequent formal mass purchase orders following client deposit payment confirmation.

Alternatively, deep full-scope ODM development projects require 45–60 working days for complete basic PPG sensor calibration plus exclusive branded wellness APP programming development work.

This VO514 large-square entry call watch series holds full comprehensive sets of global cross-border trade compliance certifications: CE RED, FCC, RoHS, REACH, GCC, WEEE and ISO9001 quality management system.

Consequently, valid official certification files eliminate cargo detention risks caused by third-party port re-inspection audit checks.

Notably: Built-in heart rate and SpO2 measurement remain lightweight consumer wellness-only functions. This entry large-screen watch carries no official medical device certification issued by global regulatory authorities.

Every finished VO514 unit undergoes four-phase factory accelerated aging testing plus end-to-end full Bluetooth call and basic PPG sensor function calibration prior to shipment dispatch. Specifically, mandatory test items include 3ATM sweat and splash-proof sealing validation, Bluetooth call audio stability test and basic heart rate & SpO2 sensor accuracy calibration.

Conversely, soft silicone wrist straps count as disposable consumable accessories and fall entirely outside all official warranty coverage scope.

5.5 NDA Confidentiality Agreement & Full Intellectual Property Transfer Terms

Specifically, transferred IP assets include exclusive structural slim large-square chassis engineering drawings, Bluetooth call & light-sport tracking firmware operational logic, basic PPG vital sensor algorithm parameters and fully customized wellness mobile APP source code files.

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.