Garmin CIRQA Smart Band vs Polar Loop 2 specs comparison
The Garmin CIRQA Smart Band is the far more capable option, with continuous heart rate, HRV-based recovery features, advanced sleep tracking, Pulse Ox, skin temperature and connected GPS. The Polar Loop 2 is a much older and simpler activity tracker, so it mainly makes sense if you specifically want basic steps, sleep and activity tracking.
Full comparison
The full record
73 specifications across 6 areas, with 23 genuine differences.
1. Design & display No clear edge
Fact
Garmin CIRQA Smart Band
Polar Loop 2
Release date
2026-07-21
2015-07
Physical size
27 x 47 x 9 mm
Thickness: 10.8 mm; Width: 20.0 mm; Size: 145-240 mm
Weight
Module: 14.8 g; 20.7 g with S-M band; 21.2 g with L-XL band
38 g
Material
Fiber-reinforced polymer module; fabric ComfortFit band
Soft Silicone or Polyurethane (TPU) wristband
Water resistance
5 ATM
2 ATM
Color options
Black, Captain Blue, French Grey, Mauve
Red, Black, White, Crystal
Display type
None
85 LEDs
Display resolution
None
5 x 17 Matrix
2. Battery & charging Garmin CIRQA Smart Band
Fact
Garmin CIRQA Smart Band
Polar Loop 2
Battery
Rechargeable lithium-ion battery
Rechargeable lithium-polymer battery; 38 mAh
Battery life
Up to 10 days
Up to 8 days without smart notifications; up to 3 days with smart notifications
Charging
Garmin proprietary charging cable
Custom Polar USB cable
3. Sensors & positioning Garmin CIRQA Smart Band
Fact
Garmin CIRQA Smart Band
Polar Loop 2
GNSS type
Connected GPS
None
GPS
Connected GPS
No
GALILEO
No
No
GLONASS
No
No
QZSS
No
No
Beidou
No
No
Accelerometer
Yes
Yes
Gyroscope
No
No
Barometric altimeter
No
No
Compass
No
No
Geomagnetic
No
No
Ambient light sensor
No
No
Optical heart rate
Yes
No
Electrical heart rate
No
No
SpO2
Yes
No
Temperature
Yes
No
Galvanic skin response
No
No
Microphone
No
No
Speakers
No
No
Vibration motor
Yes
Yes
4. Health & activity Garmin CIRQA Smart Band
Fact
Garmin CIRQA Smart Band
Polar Loop 2
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
No
No
Sports tracking
Yes
Yes
Sleep
Yes
Yes
Heart rate
Yes
Yes (with compatible Bluetooth heart-rate sensor)
HRV
Yes
No
Stress
Yes
No
Blood oxygen
Yes
No
Respiration rate
Yes
No
Skin temperature
Yes
No
ECG
No
No
Blood pressure
No
No
Body composition
No
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
No
No
Hyperglycemia risk assessment
No
No
Arterial stiffness detection
No
No
Pulse wave arrhythmia analysis
No
No
5. Smart features No clear edge
Fact
Garmin CIRQA Smart Band
Polar Loop 2
Smartphone compatibility
Android and iOS
Android and iOS
Operating system at launch
Garmin proprietary
Proprietary
Bluetooth
Yes
Yes
Wi-Fi
No
No
NFC / connected pay
No
No
UWB
No
No
Cellular
No
No
Smartphone notifications
No
Yes
Bluetooth calling
No
No
Smartphone music control
No
No
On-board music storage
No
No
Voice assistant
No
No
6. Navigation & safety Even
Fact
Garmin CIRQA Smart Band
Polar Loop 2
Maps
No
No
Offline maps
No
No
Navigation
No
No
Emergency SOS
No
No
Satellite SOS
No
No
Fall detection
No
No
LED flashlight
No
No
Diving
No
No
No significant differences in this area.