VO508 Slim Rotary Knob Bluetooth Call Smart Watch

VO508 Slim Rotary Knob Bluetooth Call Smart Watch – 3ATM 1.85 Inch Fitness Tracker For Men & Women

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

The VO508 is an ultra-slim square smart watch with full Bluetooth calling function. Furthermore, it carries two exclusive core features: a physical side rotary knob and an integrated AI voice assistant.

Notably, this wearable targets three primary groups of B2B wholesale partners. These groups include fashion fitness accessory distributors, mass retail wearable suppliers and private-label OEM brand operators.

In addition, male and female end users choose this model for multiple daily usage needs. It works well for daily fashion matching, indoor gym training and casual light outdoor activities.

Consequently, this fashion fitness watch complements Vositone’s full product portfolio. Moreover, it pairs with VO422 mid-range fitness trackers, VO196 ECG health watches and entry-level VX02 slim bands to cover all market price tiers.

VX02 Ultra-Thin Smart Band | VO422 Fitness Tracker |VO196 ECG & Temperature Health Watch

In particular, all hardware specs and functional test data on this page come from standardized factory lab testing. Therefore, we remove vague promotional adjectives and retain only verifiable technical details for client quotation and batch QC inspection.

Call Smart Watch VO508 Fitness Tracker Bracelet Smart Watch

2. Verified Core Hardware Specifications

Furthermore, every hardware component passes strict factory calibration. Specifically, segmented clear data supports direct side-by-side product comparison for bulk purchasing buyers.

2.1 Display & Ultra-Thin Zinc Alloy Case

1.85 Inch Square IPS Full-Touch Display

The watch is fitted with a 1.85-inch square IPS color touch panel. In addition, it adopts a 240*286 fixed resolution with wide viewing angles.

Meanwhile, balanced adaptive brightness improves screen visibility under indoor ambient light and outdoor natural sunlight.

Besides, hundreds of preloaded watch face templates are stored in the system. Custom watch face images can be uploaded via the matched multi-language wellness APP.

10.1mm Slim Scratch-Resistant Zinc Alloy Frame

Solid zinc alloy forms the ultra-slim middle frame. Moreover, the hard surface prevents daily scratches from clothing and sports equipment contact.

Consequently, the main electronic unit weighs only 28 grams without strap attachments. It reduces long-wear wrist pressure for all-day daily use.

Notably, a mechanical rotary knob sits on the watch side. Users scroll menus and wake the AI voice assistant by double-tapping this knob.

Interchangeable Silicone & Woven Nylon Straps

Each VO508 package includes two replaceable wrist straps. One is soft sweat-proof silicone, and the other is breathable woven nylon.

Furthermore, multiple neutral and fashion color options support mixed retail assortments and brand customized strap matching under OEM orders.

2.2 Bluetooth 5.0 Connectivity & Mobile OS Compatibility

Bluetooth 5.0 Chip with Complete Two-Way Calling Support

The built-in Bluetooth 5.0 low-power chip delivers stable anti-interference pairing with smartphones. In addition, users can dial, answer and save contact numbers directly on the watch screen.

Besides, the system generates vibration alerts for SMS messages and all mainstream social media application notifications after successful pairing.

Notably, this watch does not integrate standalone GPS hardware. Therefore, all sport route tracking records rely fully on the paired mobile phone’s GPS signal.

Wide Cross-System Mobile Device Support

It connects smoothly to Android 8.0 or newer mobile phones. Moreover, it also operates normally with iOS 9.0 and above Apple devices.

Consequently, broad system compatibility cuts device adaptation barriers for global end consumers and cross-border resellers.

2.3 260mAh Battery & Magnetic Pogo-Pin Charging System

Magnetic Suction Pogo-Pin Charging Dock

Magnetic attraction locks the charging connector into position automatically for simple daily recharging. Besides, the sealed charging port blocks dust, sweat and oil to protect internal circuit components long-term.

In addition, it works with all standard 5V/1A USB wall power adapters and portable power banks for universal charging access.

Meanwhile, a full complete charging cycle from zero to full battery capacity takes roughly 2 hours under lab test conditions.

Lab-Tested Tiered Battery Endurance Data

A 260mAh lithium polymer battery carries multi-layer safety protection circuits. These circuits block overcharging, over-discharging and short-circuit risks.

Furthermore, lab test results record two distinct stable usage cycles. Heavy mixed usage with Bluetooth calling and AI voice active lasts 7 full days.

Alternatively, power-saving standby mode with all wireless functions disabled extends usable runtime up to 15 days.

2.4 3ATM Daily Water & Sweat Resistance Usage Rules

The VO508 complies with ISO 22810:2010 3ATM industrial standard. Furthermore, it resists daily sweat buildup, hand-wash splashes and brief light rain exposure.

Approved Daily Wear Scenarios

Therefore, users can wear this watch during office hours, indoor light workouts and short outdoor walks under light drizzle.

Forbidden High-Moisture Long-Immersion Scenarios

Conversely, do not wear the watch for swimming, diving, snorkeling, hot showers or sauna sessions.

Moreover, long-term hot and humid environments accelerate the aging speed of internal waterproof rubber gaskets.

Consequently, hardware damage caused by improper liquid immersion will void the official 12-month hardware warranty coverage.

Natural Gasket Aging Explanation

In particular, internal waterproof rubber sealing parts degrade gradually after long-term daily wear. Therefore, reduced splash resistance counts as normal physical wear, not manufacturing defects.

3. PPG Sensor Full Wellness Tracking Functions

Mandatory Non-Medical Disclaimer

First of all, all heart rate, blood oxygen, blood pressure trend, stress and sleep data serve only general civilian wellness reference.

Furthermore, this fashion fitness smart watch is not certified medical equipment. Therefore, its measured values cannot support clinical disease screening or professional medical treatment decisions.

In addition, the watch sends vibration alerts when vital signs exceed custom safe thresholds. Consequently, users must visit licensed medical institutions promptly with persistent physical discomfort or abnormal vital indicators.

Meanwhile, real-world measurement fluctuations stem from multiple external interference factors.

Specifically, these influencing factors include strap tightness, arm hair, skin tattoos, skin thickness and fluctuating ambient temperatures.

3.1 24-Hour Continuous Vital Sign & Sleep Cycle Monitoring

The built-in PPG optical sensor runs automatic round-the-clock vital sign tracking. It captures real-time heart rate, SpO2, blood pressure trends and daily stress levels.

Besides, the intelligent sleep analysis module splits rest cycles into light sleep, deep sleep and REM stages. Nighttime silent alert mode avoids sleep interruptions for users.

3.2 50+ Multi-Mode Indoor & Outdoor Sports Recording

Notably, the watch firmware preloads over 50 diversified sport mode profiles. Supported activities cover walking, jogging, cycling, yoga, ball sports and simulated swimming training.

In addition, the watch locally stores exercise duration, real-time step counts and total calorie consumption data offline without constant Bluetooth connection.

Therefore, all historical sport logs will synchronize to the multi-language wellness APP once stable Bluetooth pairing restores.

4. Exclusive Rotary Knob AI Voice System & Daily Auxiliary Tools

4.1 Unique Rotary Knob Navigation & AI Voice Assistant

This VO508 model features a dedicated side mechanical rotary knob as its core differentiated function. Furthermore, users scroll through menu interfaces smoothly by rotating the knob.

In addition, a simple double tap on the knob wakes up the built-in AI voice assistant. Users input voice commands to set alarms, control music playback and query real-time weather information.

Consequently, the knob and voice system deliver a more convenient operating experience compared to touch-only fitness watches.

4.2 Complete Bluetooth Call & Real-Time Weather Notification System

After stable Bluetooth pairing, users make and receive voice calls directly via the watch’s built-in speaker and microphone. Moreover, the watch synchronizes daily real-time weather forecast data automatically.

Consequently, wearers can reasonably adjust outdoor training and daily travel plans based on updated weather conditions.

4.3 Built-In Lightweight Daily Practical Toolkit

In particular, the system integrates a full set of auxiliary life tools suitable for fashion daily wear and fitness scenarios.

Besides, available tools include multi-group adjustable alarms, sedentary standing activity reminders and regular drinking hydration alerts.

Furthermore, it also carries stopwatch, countdown timer and phone-locate vibration prompt functions for lost mobile devices.

4.4 Multi-Language APP Cloud Data Storage & Wellness Trend Reports

The matching multi-language wellness APP creates two-way cloud data synchronization with the VO508 watch. In addition, it permanently archives all offline historical health and sport records.

Specifically, stored archives include full vital sign logs, multi-stage sleep data and complete sport training statistics.

Moreover, the APP platform generates automatic weekly and monthly wellness trend reports to visualize long-term physical condition changes for continuous health management.

Consequently, the built-in cloud backup function prevents permanent loss of personal historical health tracking and workout data.

5. B2B Wholesale Terms & Tiered OEM / ODM Customization Packages

Vositone holds 16+ years of wearable device research and mass manufacturing experience. Furthermore, our standardized factory occupies over 10,000 square meters with complete production and testing assembly lines.

In addition, the internal professional team includes 70+ dedicated R&D engineers and 300+ full-time production operators.

Besides, we own more than 30 wearable technology patents. Meanwhile, the factory maintains an ultra-low 0.12% finished product defect rate after full QC inspection.

Consequently, monthly stable production capacity reaches 50,000+ units to support continuous global bulk wholesale and OEM order fulfillment.

5.1 Tiered MOQ Customization Rules (Fashion Bluetooth Call Watch Line)

• 100 units: Custom laser engraving of buyer brand logo on the zinc alloy watch middle frame
• 300–500 units: Custom fashion fitness-themed retail gift boxes for small-volume white-label trial orders
• 1,000 units: Standard OEM adjustments: case color matching, dual strap color selection, system UI redesign, custom boot animation, basic firmware tuning for AI voice response and sport mode logic
• 3,000 units: In-depth ODM development: multi-sport algorithm calibration, PPG health sensor parameter optimization, exclusive branded independent wellness APP programming
• 0 MOQ flexible support: Available for dropshipping and small-batch brand test orders

5.2 Sample Development & Mass Production Lead Time Schedule

Standard sample development takes 10 to 15 working days. Furthermore, expedited rush sample service finishes within 7 working days for urgent client demands.

In addition, all full sample development fees can be fully deducted from subsequent formal mass purchase orders after deposit confirmation.

Meanwhile, standard OEM bulk production cycles run 30–45 working days once the client deposit is received and confirmed.

Alternatively, deep customized ODM projects require 45–60 working days for full sensor tuning and exclusive branded APP programming work.

5.3 Global Market Compliance & Complete Batch Certification Documents

This VO508 watch series passes all core global cross-border trade certifications: CE RED, FCC, RoHS, REACH, GCC, WEEE and ISO9001 quality management system.

Furthermore, complete batch certification documents support barrier-free customs clearance across all major global trade regions.

Consequently, full official certification sets eliminate cargo detention delays caused by third-party port re-inspection.

In addition, all non-compliant Bluetooth SIG BQB related descriptive text has been fully removed to meet unified cross-border e-commerce platform content standards.

5.4 Factory QC Testing Process & 12-Month Global Limited Hardware Warranty

Every finished VO508 unit completes four rounds of factory aging testing and full-function calibration before shipment. Specifically, key testing items include 3ATM splash resistance test, rotary knob operation stability check, Bluetooth call signal stability and PPG sensor accuracy calibration.

Meanwhile, the 12-month global limited hardware warranty only covers confirmed original manufacturing defects of the main electronic watch module.

Conversely, interchangeable silicone and nylon straps count as consumable accessories and are excluded from warranty coverage scope.

Furthermore, naturally aged waterproof rubber gaskets and user-caused physical impact damage also fall outside official warranty protection.

5.5 NDA Confidentiality Agreement & Full Intellectual Property Transfer

All customized fashion Bluetooth call watch development projects sign formal NDA confidentiality agreements at the official project launch stage. Moreover, buyers obtain complete full intellectual property ownership of all custom development assets after full order payment settlement.

Specifically, transferred IP assets include exclusive structural drawings, AI voice & sport tracking firmware logic, health sensor algorithm parameters and fully customized wellness APP source code files.

Consequently, complete full IP handover enables brands to build unique differentiated competitiveness in the global mid-range fashion fitness wearable wholesale market.