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D41Wifi
OEM
8526919090
The Only One RTOS Low Power Consumption GPS Tracker watch valid wifi connection with Heart Rate BP Fall down Alert for In-Home Care Patients D41WiFi
The ideal smart watch for your aging parents – keeps them safe both at home and outdoors. 4G LTE (with SIM card) serves as the primary connection to ensure real‑time location and health data are always available. WiFi acts as a supplementary channel – when your parents are at home, the watch automatically switches to WiFi, saving SIM data and extending battery life. With B28 + B66 bands support, it works with more global carriers.
Advantages:
1)Valid wifi network (OK manual connect wifi router in watch, app or in server )
2)Wifi bring the watch online without a SIM(useful for area bad cellular network coverage )
3)Less the SIM data plan monthly
4)Stable wifi connection, (less the power consumption) ,more working hours
5)More accuracy indoors position
6)No social media,without camera
7)B28/B66 bands available
8)Good for elderly healthcare of homecare, Nursing care, and hospital care
Video
Woking Features:
•Two way voice call/2 way communication | •Valid Wifi Connection |
•SOS button (Long press 3 seconds to | • No Social Media |
•Heart rate/Blood pressure/ blood oxygen monitoring | •Touch screen |
•Phone book/Contacts | •Fall down alert |
•Geo-fence/Safety Zone (Three non overlapped area can be set up) | •IP67 waterproof |
•Real time Google Map location & History Route | •Alarm Clock & Medicine reminder |
•Pedometer,Calories & Sleep monitoring | •Sedentary Reminder |
•Support 4G/3G/2G network | •Support GPS+Wifi+LBS positioning |
•With motor for vibration mode | •SMS Alerts (Fall down alert/Low battery alert/SOS alerts) |
•Time display | •Switch dial clock |
•Multi languages | •Volume/brightness adjustable |
• Accuracy Indoors Position | •Reject unknown calls |
•Remote shutdown & Remote Restart | •Stop Watch/Calculator/Math game |
•Beesure GPS app and AWS Cloud server platform lifetime free | •With 1 meter length magnet charging cable with avoid short circuit IC |
Product Parameters
Chipset | ASR3603S | Material | PC+ABS |
Operation | RT system | Positioning | GPS+LBS+Wifi |
Battery capacity | class A rechargeable 800mAh | Memory | 192MB+128MB |
Charging time | 4-5hours(min.) | Working days | 3-4days |
Network | support 4G/3G/2G network | Camera | No |
Sim card | Nano sim card | Waterproof | IP67 waterproof |
Screen resolution | 2.02inch IPS screen | Charging cable | 1 meter length magnet charging cable with avoid short circuit IC |
Button | Power/SOS button | Available Colors | Black |
Frequency bands 1 ( For Europe, Asia and Africa area) | TDD-LTE: B38 B39 B40 B41 | Frequency bands 2 (For American area) | FDD-LTE: B1 B2 B4 B5 B7 B12 B17 B28 B66 |
Main Features
Dual‑Mode Connectivity – SIM First, WiFi Auxiliary, Auto‑Switch
Defaults to 4G LTE (SIM card) for 24/7 connectivity, especially when your parents are out walking or shopping.
When the watch detects a saved home or facility WiFi network, it automatically switches to WiFi to reduce cellular data usage while maintaining all functions (data sync, calling, alerts).
The two modes alternate seamlessly-no manual intervention needed.
B28 & B66 Dual‑Band Support
Built-in 700MHz (B28) and 1700/2100MHz (B66) bands cover major 4G networks. B28 is the primary band in Australia, Japan, and Latin America, while B66 is widely used in North America.
High‑Precision Indoor & Outdoor Positioning – WiFi Boosts Indoor Accuracy
Combines GPS, BeiDou, and WiFi‑assisted positioning. Outdoors, it relies on GPS/cell towers; indoors, WiFi‑assisted location pinpoints the room/floor level. Set a geofence – you receive instant alerts if your parent leaves the safe zone.
Extended Battery Life via WiFi Auxiliary Mode
Although the primary mode is cellular, the watch automatically switches to WiFi when within range. Since WiFi consumes far less power than cellular, overall battery runtime is significantly extended – fewer charges per week.
Pure Health‑Focused System – No Social Media
Only essential functions: heart rate, SpO₂, sleep tracking, one‑tap SOS, and two‑way calling. No games, no short videos, no WeChat – simple interface for seniors and better privacy protection.
Application Scenarios
Daily at home: Parents connect to home WiFi – you check their health data via the app, and the SIM card consumes almost no data.
Out for a walk or shopping: The watch automatically switches to 4G LTE – you still have real‑time location and can call them anytime. No risk of losing contact.
Travel or visiting family: Insert a local SIM that supports B28/B66 – connectivity is guaranteed; once they are back at a WiFi spot, the watch switches to WiFi to save data.
FAQ
Q1: Does the watch have to use a SIM card? Can it work on WiFi only?
A: Yes, it can. The watch defaults to SIM‑based 4G LTE as the primary connection to ensure your parents stay online when they go out. However, you may choose not to insert a SIM card and simply use your home WiFi for all functions (location, health data sync, two‑way calling). We recommend using both modes – WiFi at home saves data and power, while the SIM keeps you connected outdoors.
Q2: When my parent goes out for a walk, does the network switch automatically? Do I need to do anything?
A: It’s fully automatic. The watch remembers your home WiFi and any saved networks. When at home, it switches to WiFi automatically (saving data and battery); once your parent leaves the WiFi range, it seamlessly switches back to the SIM’s 4G network. No manual intervention is needed – either by you or your parent.
Q3: Can indoor positioning pinpoint the exact room? I’m worried about finding my parent if they fall at home.
A: Yes. The watch combines GPS, BeiDou, and WiFi‑assisted positioning. Indoors, WiFi signals help improve accuracy to the room level. On the app, you can see which floor and room your parent is in, so you can locate them quickly in case of a fall or emergency.
Q4: How long does the battery last? Do I need to charge it every day?
A: With normal use – and since WiFi mode consumes much less power than cellular – when your parent is mostly at home, the battery can last 3 to 5 days (depending on usage frequency). Even with SIM mode enabled all day, it easily lasts over a day. A charging cradle is included for convenience.
Q5: Without WeChat or TikTok, will my parent feel bored? How can we communicate?
A: This watch is purposely designed for senior health – it removes all social and entertainment apps to avoid accidental touches, addiction, or scams. But it retains two‑way voice calling and a one‑tap SOS emergency button. You can call your parent anytime, and they can long‑press the button to ask for help – simple, safe, and effective.
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