

When you want to track exercise, both Fitbits offer the same 20+ goal-based exercise modes and that includes the likes of running, cycling, walking and pool swim tracking too. There are optical heart rate monitors on both trackers to continuously monitor heart rate including during sleep and for measuring effort levels during exercise. Fitness tracking and sportįor those core fitness tracking features, both can track steps, distance covered, calories burned and fire out inactivity alerts. However, only the Fitbit Charge 5 will track nighttime blood oxygen via its SpO2 sensor – which can be an indicator of sleep disorders such as sleep apnea.

You can also find additional data like sleep heart rate and restlessness data via Fitbit's Premium subscription service. In terms of sleep tracking, both of these trackers off a nearly identical experience, and Fitbit sleep tracking is one of the best in the business.īoth devices offer a breakdown of time spent in sleep stages and the duration of your night's rest. On the sensor front, both use a 3-axis accelerometer to track steps, some indoor and outdoor activities and enable sleep monitoring. Though it's clear the Charge 5 can offer you more in some of those departments. When it comes to the job of tracking your steps, sleep, health or exercise, both of these trackers are capable of covering all of those things. The Charge 5 gives you a superior color screen, the same sort of customisable strap options and nicer case materials too if you're not a fan of the all-plastic look on the Inspire 2. The Inspire 2 is the slimmer and lighter of the two, has more versatile wearing options and does offer the ability to mix up the strap options too. A bright screen mode makes it better suited for indoor viewing, you just might struggle to always see it in clear view outside. The Inspire 2 in contrast uses a greyscale display that helps Fitbit to deliver strong battery performance, but we found struggles for visibility in bright sunlight. There's big differences on the screen front with the Charge 5 packing a full AMOLED color touchscreen, which offers an always-on mode. It's a similar story for the Charge 5, which hosts haptic control and additionally includes stainless steel panels to offer the ability to take ECG and EDA readings. In terms of interacting with these devices, the Inspire 2's case can be squeezed to wake up the display or skip back a screen. Like the Inspire 2, it's been slapped with a 5ATM water resistant rating letting you submerge them in water up to 50 metres, making it safe for swimming. On the Charge 5 you get a much higher-class aluminium case, with a removable silicone band with an array of other official Fitbit bands on offer. A clip accessory means you can wear it on a waistband or underneath your clothes for more discreet tracking. Unlike the Charge 5, you don't only have to wear it on your wrist either.
