"If you can’t decide between ELRS and 4in1, I’d probably go for the ELRS version. It’s going to be the major RC protocol in the near future as it’s so powerful and affordable, with a wide range of tiny and inexpensive ELRS receivers available.
One reason to get the 4in1 is if you only want to use other protocols such as Frsky D8/D16, but these are kind of obsolete and slowly phasing out. Or if you are buying an external ELRS module for the radio, then it also makes sense to get the 4in1 as you don’t want to have another ELRS module onboard doing nothing. An external ELRS module might have the advantage of higher maximum output power of up to 1W. But honestly the internal module’s 250mW is plenty for FPV pilots, giving you miles of range in ideal conditions. "
Optional V4.0 Hall Gimbals and AG01 Gimbals
V4.0 HALL GIMBALS
Standard version withV4.0 Hall Gimbals, same chipset as the AG01, optimized hall sensor circuitry, improves center point positioning and temperature stability. Stick travel, self-centering and stick tension are now externally adjustable.
AG01 Gimbalis fully CNC milled for ultimate precision with quad ball bearings for a smooth and precise feel. Featuring front-accessible tension and travel adjustment for easy fine-tuning.
Flat & Raised Grips Included
Both the raised and flat versions of the rear grips are included allowing you to customize the feel of your TX16s MKII right out of the box.
Built-in dual speakers
External Module Bay
The TX16s natively supports Team Black Sheep MicroTX modules in CRSFmode with LUA scripts. Best of all the TX16s Internal 4-in-1 Multi-protocol module allows you to keep the MicroTX installed and switch between internal RF and Crossfire via software, no more module swapping.
Easy Firmware Updates
Retooled faceplate with improved fit and finish
Improved S1/S2 knobs with center detents
4.3” IPS Color Display - The TX16s features a bright and clear 4.3-inch IPS color display for easy and convenient model setup and operation with adjustable brightness to suit all conditions.
Improved LS/RS Sliders with smoother feel and better centre-detents.
New 3.5mm Audio jack - Rear mounted audio jack minimizes RF interference from external modules and adds headphone audio feature.