Compare Fire-Boltt Ninja Calling Pro 42.9mm with another smartwatch
1 smartwatchSpecs from each Flipkart listing
₹1,099₹7,999
Checked 27 Oct 2026, 6:01 am ISTFlipkart Price today
Flipkart MRP
₹7,999
Below MRP
86%
Display
Screen size
1.69 inch
Display type
IPS LCD
Resolution
240 x 280 Pixel
Dial shape
Square
Features
Calling
Yes
Heart rate
Yes
Water resistance
Yes
Battery & warranty
Battery life
5 Days
Works with
Android & iOS
Strap
Silicone
All other specs from Flipkart (51)
Fitness and Watch Functions
Calorie Count
Yes
Step Count
Yes
Altimeter
No
Other Fitness Features
Pedometer with SC7A20 Sensor, Heart Rate Monitor with HRS3600 Sensor, SpO2 (Blood Oxygen Monitor), Sleep Monitoring, Sedentary Reminders, Breathe Monitoring
Date & Time Display
Yes
Compass
No
Calendar
No
Alarm Clock
Yes
Chronograph
Yes
Language
English
Number of Buttons
1
In the Box
Sales Package
1 Smartwatch, 1 Charging Cable, 1 Manual, 1 Warranty Card
General
Model Number
BSW039
Model Name
Ninja Calling Pro 42.9mm (1.69) Bluetooth Calling Smartwatch AI Voice Assistant
Dial Color
Dark Grey
Strap Color
Brown
Size
Free Size
Touchscreen
Yes
Usage
Fitness & Outdoor
Ideal For
Men & Women
Brand Strap Color
Cinnamon Slate
Camera and Display Features
Backlight Display
No
Scratch Resistant
Yes
Additional Features
Advanced Features
Multi Sport Mode, Music Control
Key Features
1. Bluetooth Calling Smartwatch - Make & Receive Calls On the Go 2. In built Mic & Speaker for HD Calling experience 3. AI Voice Assistance to get your work done on time 4. 8 In built watch faces with over 100 cloud faces 5. Smart calculations on your wrist with built in calculator 6. 1.69â€_x009d_ LCD IPS Full Touch Display Smartwatch 7. 240*280 Pixel High Resolution Display with 2.5D Lamination 8. Find Phone functionality 9. IP67 Water Resistant 10. Track SpO2 & Heart Rate Monitoring with HRS3
Dimensions
Width
43.5 mm (4.35 cm)
Height
38.5 mm (3.85 cm)
Thickness
9.5 mm (0.95 cm)
Weight
40 g
Audio and Video Features
Speaker
Yes
Microphone
Yes
Voice Control
Yes
Product Details
Brand Color
Silver
Closure
Buckle
Sensor
Accelerometer, SpO2 Sensor, Heart Rate Sensor
Notification
Call, SMS, Whatsapp, Facebook, Twiter, Other Social Apps, Sedentary Reminder, Goal Completion
Notification Type
Vibration & Ringer
Battery Type
Lithium Ion
Charge Time
120 min
Rechargeable Battery
Yes
Battery Run Time
Upto 5 days
Sim Slot Present
No
Voice Caling
Yes
Multi-touch
Yes
Connectivity Features
Bluetooth
Yes
Wi-Fi
No
GPS
No
Messaging Support
Yes
Bluetooth Version
v5.0
Email Support
No
Operating Range
10 m
Specs are copied exactly from each Flipkart listing (last seen 2026-10-27); sellers write them and they can be incomplete or wrong. “Not listed” means Flipkart does not show it — we never fill it in. Prices are our own checks, shown only while under 24 hours old. See all smartwatches to compare.