F400 ECG Smartwatch with Mini Games, 7-Hour Talk Time and 5 Built-in Dials

Product Name: F400 ECG Smartwatch

Product Overview: The F400 is a 1.55-inch round ECG health smartwatch for buyers who want medical-style health tracking with a full safety layer. Its VP555EP three-in-one sensor chip records electrocardiograms to the Joeme Fit app and produces HRV reports, while SOS alarm and fall alarm — both stated in the spec sheet — add emergency protection for elderly users. A 380mAh battery runs 5–8 days under heavy use, 10–15 days under light use, and 60 days on standby, with 7 hours of talk and music playback. With 150+ sports modes, mini games, five built-in watch faces and six strap options, the F400 fits health-focused buyers and gift markets alike.

Core Specifications:
• Display: 1.55-inch round IPS LCD screen, 360×360 (sRGB high colour gamut), OCA full touch
• Chipset: JL7013A master chip, 16Mb + 128MB storage
• Health sensor: VP555EP full-function three-in-one chip; G-sensor: ROHM KXTJ3-1057
• ECG: electrocardiogram measurement to the Joeme Fit app
• Health: HRV report, 24-hour red-light blood oxygen monitoring, 24-hour scientific sleep monitoring, all-day stress monitoring, 24-hour heart rate monitoring, MET/breathing exercises, women’s health (menstrual cycle tracking)
• Safety: SOS alarm (set emergency contacts in the app), fall alarm
• Sports: 150+ modes — run and walk (10), cycling (5), outdoor (11), indoor (31), dance (16), combat (12), ball games (29), ice and snow (13), leisure (12), board games (5), other (5)
• Battery: 380mAh polymer Li-ion, 3.7V; 5–8 days heavy use, 10–15 days light use, 60 days standby, 7 hours talk/music playback
• Charging: magnetic cable, ~2 hours, 5V/1A (do not use a fast-charge adapter); short-circuit protection charging cable
• Waterproof: IP67; Bluetooth: 5.3
• Smart features: Bluetooth calling, voice assistant, mini games, music playback and control, weather display, remote camera control, find my phone, stopwatch, timer, calculator, raise-to-wake
• Watch faces: 5 built-in + 1 from the watch face market + 1 custom
• Case: black; 55 × 49.7 mm, 11.7 mm thick (excluding heart rate sensor)
• Weight: 48g (head), 68g (total)
• Straps: silicone (standard); Milanese, canvas, imitation leather, three-link steel, bamboo (optional)
• Compatibility: iOS 10.0+, Android 5.0+; watch languages: 24; app languages: 35
• Notifications: Chinese, Japanese, Korean, Latin and Cyrillic push, covering 150 countries

Strategic Selling Points:
① ECG plus SOS and fall alarm — records electrocardiograms to the app, with emergency alarm and fall detection for elderly users.
② 150+ sports modes — running, cycling, outdoor, indoor, dance, combat, ball games, ice and snow, leisure and board games.
③ 380mAh battery, 60-day standby — 5–8 days heavy use, 10–15 days light use, 7 hours of talk and music playback.
④ Mini games and five built-in dials — games on the wrist plus 5 built-in, 1 market and 1 custom watch face.

Sourcing Notes: The Chinese and English spec sheets (V1.0) are identical. Unlike the F240, SOS alarm and fall alarm ARE in the F400 spec sheet, so they are stated here. Health claims are deliberately limited for overseas listing, following the Q520/E910 precedent: body composition analysis, blood composition analysis (uric acid, blood lipids), fifth-generation blood glucose assessment, blood pressure monitoring and body temperature monitoring are in the spec sheet but are NOT stated here. The sports breakdown in the spec sheet sums to 149 against the headline 150+; the copy follows the headline. Watch languages are 24 by the spec sheet’s own list (the headline says 20). The English spec sheet mistranslates MET as “meth”; the copy uses MET/breathing exercises. The detail images conflict with the spec sheet in three places and the copy follows the spec sheet: screen size is 1.55 inches (one detail image says 2.01 inches), sports modes are 150+ (one detail image says 158), and the health sensor is VP555EP with 5–8/10–15/60-day battery life (the detail-page spec table says VP556-P4 and 7–15 days). Strap options follow the spec sheet; the detail page shows six including black and brown leather.

Why Source via HnThai:
• Direct factory cooperation from Huaqiangbei, Shenzhen, with fresh models every month
• Full inspection before shipping — every unit checked, not sampled
• Wholesale pricing with OEM/ODM support for private label and custom packaging