If like me, you were wooed by a smart / fitness tracker watch thingy in the last year or so, there’s a good chance that you ended up with one of Fitbit’s many offerings. I went with the Ionic as I’d had issues with my phone’s GPS reliability with apps like Strava/Endomondo so built-in GPS tracking was the big draw. Another tease was the Fitbit Pay functionality where they said everything was as easy as tapping your watch on a contactless reader (which still feels weird..) and there you go. This is all well and good unless like me, you’re a Revolut user and whilst the Fitbit website says Revolut is supported, trying to add your card results in a big NOPE. Contacting Revolut’s support revealed that it was a BETA option that wasn’t rolled out for everyone, yet Fitbit still proudly say that it’s openly available which is frustrating to say the least.

Hours of Google searching and forum trudging later, I stumbled across a Reddit post where the user /u/coolkat2013 shared their ultimate wisdom on how to get this working if you don’t use USD as your main balance.

It seems we non-USD users need to add a USD balance to our accounts, place a small amount in there (I just used $1) and then go through the Fitbit app to add your card again. Strangely, it seems that it doesn’t automatically convert the temporary holding charge into one of your active balances and straight-up refuses if you don’t have a USD balance but there you go, that’s it.

If this doesn’t work for you, feel free to leave a comment as I’d be intrigued to find out why!

Raspberry Pi Compute Module 4/5

Technical Specifications

Specification	Compute Module 4	Compute Module 5
Form Factor	55 mm × 40 mm	55 mm × 40 mm
Processor	Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz	Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
Memory	1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)	1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)
Connectivity	Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna options Onboard Gigabit Ethernet PHY supporting IEEE1588 1 x USB 2.0 interface PCIe Gen 2 x1 interface 28 GPIO signals SD card interface for SD card or external eMMC (for use only with Compute Module 4 variants without eMMC)	Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna options Onboard Gigabit Ethernet PHY supporting IEEE1588 1 x USB 2.0 interface PCIe Gen 2 x1 interface 28 GPIO signals SD card interface for SD card or external eMMC (for use only with Compute Module 4 variants without eMMC)
Video	Dual HDMI interface (up to 4Kp60 supported) 2-lane MIPI DSI display interface 2-lane MIPI CSI camera interface 4-lane MIPI DSI display interface 4-lane MIPI CSI camera interface	Dual HDMI interface (up to 4Kp60 supported) 2-lane MIPI DSI display interface 2-lane MIPI CSI camera interface 4-lane MIPI DSI display interface 4-lane MIPI CSI camera interface
Multimedia	H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics	H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics
Input Power	5V DC	5V DC
Operating Temperature	-20°C to +85°C	-20°C to +85°C
Production Lifetime	Raspberry Pi Compute Module 4 will remain in production until at least January 2034	Raspberry Pi Compute Module 4 will remain in production until at least January 2034

Compute Module 4	Compute Module 5
Form Factor
55 mm × 40 mm	55 mm × 40 mm
Processor
Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz	Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
Memory
1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)	1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)
Connectivity
Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna options Onboard Gigabit Ethernet PHY supporting IEEE1588 1 x USB 2.0 interface PCIe Gen 2 x1 interface 28 GPIO signals SD card interface for SD card or external eMMC (for use only with Compute Module 4 variants without eMMC)	Optional wireless LAN, 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless, Bluetooth 5.0, BLE with onboard and external antenna options Onboard Gigabit Ethernet PHY supporting IEEE1588 1 x USB 2.0 interface PCIe Gen 2 x1 interface 28 GPIO signals SD card interface for SD card or external eMMC (for use only with Compute Module 4 variants without eMMC)
Video
Dual HDMI interface (up to 4Kp60 supported) 2-lane MIPI DSI display interface 2-lane MIPI CSI camera interface 4-lane MIPI DSI display interface 4-lane MIPI CSI camera interface	Dual HDMI interface (up to 4Kp60 supported) 2-lane MIPI DSI display interface 2-lane MIPI CSI camera interface 4-lane MIPI DSI display interface 4-lane MIPI CSI camera interface
Multimedia
H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics	H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics
Input Power
5V DC	5V DC
Operating Temperature
-20°C to +85°C	-20°C to +85°C
Production Lifetime
Raspberry Pi Compute Module 4 will remain in production until at least January 2034	Raspberry Pi Compute Module 4 will remain in production until at least January 2034

Geekbench 6

CPU/RAM Benchmark

Specification	Single Core		Multi Core
ROCK 5B	788		2851
Raspberry Pi 5	774		1736

Single Core	Multi Core
ROCK 5B
788	2851
Raspberry Pi 5
774	1736