King Smith X21 Series Double-Fold Treadmill – Smart, Compact, and Powerful Home Fitness Solution

Experience the perfect blend of innovative technology, compact design, and powerful performance with the King Smith X21 Series Double-Fold Treadmill. Engineered for small spaces, this treadmill delivers a professional-grade workout experience at home while keeping storage simple and convenient.

🏆 Key Features

🧩 Innovative Double-Folding Technology
Maximize your living space with double-fold functionality, allowing the treadmill to be stored upright with minimal footprint. Ideal for apartments, offices, or any space-conscious environment.

💡 Hidden Digital Display Screen
The industrial-style LED display is discreetly integrated into the panel, providing a sleek design while showing time, speed, distance, calories, and steps clearly during your workout.

⚡ One-Touch Operation
Easily control your treadmill via the handrail operation panel, giving you effortless access to all functions with a single touch.

📱 NFC & App Integration
Connect directly via NFC (Android) or use the KS Fit app on iOS and Android to monitor time, speed, steps, and calories burned. Keep a complete history of your workouts and access personalized programs for consistent fitness progress.

🩰 Premium Cushioning & Shock Absorption
The professional running deck reduces impact on knees and joints while providing a comfortable, stable workout surface.

🔒 Safety & Smart Features
Includes overload protection, automatic standby, and child lock functions, ensuring safe operation for the whole family.

⚡ Brushless Motor
Powered by a durable 918W brushless motor, the X21 Series offers quiet, efficient performance and supports speeds up to 12 km/h (7.45 mph).

📐 Specifications

• Motor: Brushless

• Rated Power: 918W

• Speed Range: 1–12 km/h (1–7.45 mph)

• Running Area: 460 × 1210 mm (18.1” × 47.6”)

• User Capacity: 110 kg (240 lb)

• Folded Size: 1007 × 711 × 225 mm (39.6” × 27.99” × 8.86”)

• Unfolded Size: 1419 × 711 × 1052 mm (55.86” × 27.99” × 41.42”)

• Panel Material: Acrylic

• Body Material: ABS + Aluminum Alloy

• Display: OLED screen

• Connectivity: NFC (Android) & KS Fit App (iOS & Android)

• Weight: Net 37 kg / Gross 42 kg

• Other Functions: Overload protection, automatic standby, child lock