Fitness Tracker Face-Off: Circular Ring Slim vs Withings Pulse O2 – Which One Should You Buy?

The world of fitness trackers is a crowded one, with options ranging from simple step counters to sophisticated devices that monitor everything from your sleep patterns to your blood oxygen levels. Two popular contenders in this space are the Circular Ring Slim and the **Withings Pulse O2**. Both devices offer a sleek and minimalist design, but their features and capabilities differ significantly.
This blog post aims to provide a comprehensive comparison of the Circular Ring Slim and Withings Pulse O2, helping you decide which fitness tracker aligns best with your needs and preferences.

Design and Comfort: A Tale of Two Wearables

Both the Circular Ring Slim and the Withings Pulse O2 prioritize a minimalist aesthetic. The Circular Ring Slim, as its name suggests, is a slim and discreet ring that blends seamlessly with your everyday style. It’s available in various colors and materials, including ceramic, titanium, and gold, catering to different tastes.
The Withings Pulse O2, on the other hand, takes the form of a small, rectangular device that can be worn on your wrist or clipped to your clothing. While not as discreet as the Circular Ring Slim, it’s still relatively compact and lightweight. Its design is functional and clean, with a single button and a small OLED display.
In terms of comfort, the Circular Ring Slim excels due to its lightweight design and seamless integration with the finger. It’s barely noticeable during daily activities, making it a comfortable choice for prolonged wear. The Withings Pulse O2, while not uncomfortable, can feel somewhat bulky on the wrist, especially if you have a smaller frame.

Feature Comparison: A Deep Dive into Functionality

While both devices offer core fitness tracking features, their feature sets diverge significantly.
Circular Ring Slim:

• Activity Tracking: Tracks steps, distance, calories burned, and active minutes.
• Sleep Tracking: Monitors sleep duration, quality, and sleep stages.
• Heart Rate Monitoring: Provides continuous heart rate tracking throughout the day and during workouts.
• SpO2 Monitoring: Measures blood oxygen saturation levels.
• Stress Level Monitoring: Tracks stress levels based on heart rate variability.
• Water Intake Tracking: Allows you to log your water consumption.
• Smart Notifications: Receives notifications for calls, messages, and app alerts.
• Customizable Goals: Set personalized goals for your fitness journey.

Withings Pulse O2:

• Activity Tracking: Tracks steps, distance, calories burned, and active minutes.
• Sleep Tracking: Monitors sleep duration and quality.
• Heart Rate Monitoring: Provides on-demand heart rate measurements.
• SpO2 Monitoring: Measures blood oxygen saturation levels.
• ECG Monitoring: Allows you to measure your electrocardiogram (ECG) for heart health insights.
• Temperature Monitoring: Tracks body temperature for potential health insights.
• Water Resistance: Water-resistant up to 50 meters.

Battery Life and Charging: Keeping the Power Going

The Circular Ring Slim boasts an impressive battery life of up to 7 days on a single charge. This extended battery life eliminates the need for frequent charging, making it a convenient choice for everyday wear.
The Withings Pulse O2, on the other hand, has a shorter battery life of approximately 5 days. While still decent, it requires more frequent charging compared to the Circular Ring Slim.
Both devices offer convenient charging methods. The Circular Ring Slim comes with a charging dock, while the Withings Pulse O2 charges via a magnetic USB cable.

Connectivity and Compatibility: Seamless Integration with Your Devices

Both the Circular Ring Slim and the Withings Pulse O2 connect to your smartphone via Bluetooth. They are compatible with both iOS and Android devices, ensuring seamless integration with your existing ecosystem.
The Circular Ring Slim also offers advanced connectivity features, allowing you to connect it to other smart devices and platforms, such as Google Fit and Apple Health. This open ecosystem provides a wider range of integration possibilities.

Price and Value: Finding the Right Fit for Your Budget

The Circular Ring Slim is a premium fitness tracker with a price tag to match. Its advanced features and sleek design come at a higher cost compared to the Withings Pulse O2.
The Withings Pulse O2, while offering a comprehensive set of features, is more budget-friendly, making it a compelling option for those seeking a balance between affordability and functionality.

Final Verdict: Choosing the Best Fitness Tracker for You

Ultimately, the choice between the Circular Ring Slim and the Withings Pulse O2 depends on your individual needs and priorities.
Choose the Circular Ring Slim if:

• You prioritize comfort and a discreet design.
• You need long battery life and advanced features like continuous heart rate tracking and stress level monitoring.
• You’re willing to invest in a premium fitness tracker.

Choose the Withings Pulse O2 if:

• You prefer a more traditional fitness tracker design.
• You value features like ECG monitoring and temperature tracking.
• You’re looking for a budget-friendly option with a good feature set.

Questions We Hear a Lot

Q1: Does the Circular Ring Slim track sleep stages?
A1: Yes, the Circular Ring Slim tracks sleep duration, quality, and sleep stages (light sleep, deep sleep, and REM sleep).
Q2: Can the Withings Pulse O2 be used for swimming?
A2: Yes, the Withings Pulse O2 is water-resistant up to 50 meters, making it suitable for swimming.
Q3: What are the main differences between the Circular Ring Slim and the Withings Pulse O2?
A3: The Circular Ring Slim offers a more discreet design, longer battery life, and advanced features like continuous heart rate tracking and stress level monitoring. The Withings Pulse O2 is more affordable, offers ECG monitoring and temperature tracking, and has a more traditional fitness tracker design.
Q4: Which fitness tracker is better for tracking workouts?
A4: Both devices offer basic workout tracking features, but the Circular Ring Slim provides more detailed insights with its continuous heart rate tracking.
Q5: Is it possible to customize the Circular Ring Slim‘s notifications?
A5: Yes, you can customize the Circular Ring Slim‘s notifications to receive alerts for specific apps and contacts.