Conquer Every Adventure with the 2025 S4 Ultra Outdoor Sports Smart Watch

The 2025 New S4 Ultra Outdoor Sports Smart Watch is engineered for health-conscious users, tech-savvy early adopters, busy professionals, fitness enthusiasts, students, and outdoor adventurers who demand precision, durability, and connectivity in a single device. Unlike standard smartwatches that struggle with rugged conditions or lack advanced features, the S4 Ultra combines AMOLED clarity, GPS navigation, NFC payments, compass guidance, and Bluetooth calling—delivering a premium outdoor-ready experience.

Key Features & Benefits

• AMOLED HD Display
  Vibrant and crystal-clear visuals make it effortless to read notifications, GPS routes, and fitness metrics, even under bright sunlight.

• NFC & Bluetooth Call Functionality
  Make contactless payments and take calls directly from your wrist—perfect for multitasking on the go or during workouts.

• GPS Navigation & Compass
  Stay oriented on hiking trails, cycling routes, or city explorations. Never lose your way while tracking distance, pace, and route with precision.

• Comprehensive Health Monitoring
  Track heart rate, calories burned, and activity intensity in real-time. Maintain wellness and optimize your fitness performance effortlessly.

• Waterproof & Rugged Design
  IP68-rated construction ensures reliability in rain, sweat, or pool sessions. Built for extreme conditions without compromising style or comfort.

Picture starting your morning trail run while checking heart rate, navigating off-road paths with GPS and compass, making a quick NFC payment at a café, and taking a call—all from one ultra-responsive smartwatch. Crafted with premium materials, robust engineering, and a sleek outdoor-ready design, the S4 Ultra balances durability, style, and functionality for any scenario.

Technical Specifications:
AMOLED HD Display | NFC Payment & Bluetooth Calling | GPS Navigation & Compass | Heart Rate Monitor | Multi-Sport Tracking | Waterproof IP68 | Calories & Activity Tracker | Long Battery Life | iOS & Android Compatible | Rugged Outdoor Design

SPECIFICATIONS

: S4 Ultra

1.53 inch full touch screen: bluetooth calling smart watch

2025 Full Steel Smart watch: Business Smart watch

24-health monitoring: body temperature monitoring

Accessory Type: watch, Charging Cable, wrist strap, manual, box

Activity Tracked: Steps Tracker,Distance Tracker,Calorie Tracker,Activity Tracker

App name: RDFit

Application Age Group: Adult

Band Detachable: Yes

Band Material: Silica Gel

Band length[mm]: 275

Battery Capacity(mAh): 300-450mah

Battery Detachable: Yes

Battery Life: 3-7,8

Bluetooth-compatible Version: 5.3

Brand Name: BOXUXING

CPU Manufacturer: MediaTek

CPU Model: S4 Ultra

Case Material: Precious Metals

Category: Smart Watches

Certification: CE,FCC,RoHS

Choice: yes

Compatibility: All Compatible

Display Size: 1.53 inch AMOLED HD Large screen,1.53 inch AMOLED Full circle touch screen

Fast shipping: 100% New Fashion watch

Fitness tracker watch: Bluetooth call

Function: Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Answer Call,Dial Call,Push Message,Big Three Needles,24 hour instruction,Chronograph,Alarm Clock,Small Second,World Time,Calorie Counter,Power Reserve,week,Month,Heart Rate Tracker,Interactive Music,Noctilucent,Thermometer,Calendar,Compass,Countdown,Calculators

GPS: Yes

High-concerned chemical: None

Item Condition: New

Language: English,Russian,Spanish,Polish,Portuguese,Turkish,Italian,French,German,Korean,Japanese,Ukrainian,Hebrew,Dutch,Arabic,Indonesian,Greek

Luxury Smart Watch: Watches Gift For Men

Mechanism: Yes

Metrics measured: Heart Rate Monitor,Blood Oxygen Monitor,Sleep Monitor,Blood Pressure Monitor,Body Temperature Monitor

Model: S4 Ultra

Movement Type: Electronic

Multiple Dials: Yes

NFC Function: Door unlock and offline payment

NFC smart watch: heart rate blood pressure

Network Mode: None

Origin: Mainland China

Phone watch: Bluetooth Call Watches

RAM: 128 MB

ROM: 256 MB

Rear Camera: None

Resolution: 360*360 AMOLED Display Screen

SIM Card Available: No

SIM Card Slot: NO

Screen Material: AMOLED

Screen Shape: Round

Smart Watch Man: Smart Watch Woman

Sport watch: Health watches

Style: SPORT

System: Android Wear,Android OS,iOS

Touch Screen: Yes

Type: On Wrist

Voice assistant built-in: Yes

WIFI: No

Waterproof Grade: Professional Waterproof

answer the phone: Call watches

custom home page: Movement track

reloj inteligente mujer: watch for women

sleep monitoring: smart watch 2025