Yes, Meridian 210/218 will be more integrated in terms of a Meridian setup, and allow synchronised volume control, control of play queue, start/stop/play, etc.

Also, bear in mind they offer more connectivity than just Bluetooth (wired Ethernet, wifi (210), etc), which also has implications to connectivity, future expansion (e.g. 210 is Roon Ready) and sound quality (the Bluetooth device is limited to 24/48 and will be compressed - so it’s debatable whether it’s really “HD”).

If you don’t need/want Bluetooth there’s no need to be limited by it. Have a look at the datasheets of both and see if either suits your needs better?

Bear in mind also that a feature list speaks nothing of basic sound quality. My 2p is that Meridian has vast experience of getting digital audio to world class levels, including proprietary tech, and a long experience of extracting the best from streaming also. Take that for what you will, though. Ideally in terms of SQ you need a home demo.

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: Oppo BDP-105, TEAC VRDS-7/Trichord Clock 3/PSU, 551, Quad 303, Harbeth Compact 7ES-3, Kimber cables, Russ Andrews mains and supports.
Previous Meridian: 5000C, 5200SL, 7200.2, 6000, 562V.2, 568.2mm, 800v4, 808.2i, 818v2/v3, 861v8, 502