FiiO M6 Portable High-Resolution Audio Player (with AirPlay, LDAC +All Bluetooth codec) $191.96 Delivered @ Addictedtoaudio eBay

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In my opinion this will be a more powerful option to the Sony DAP’s in the same price range.
My experience with Sony’s past models is they almost last forever, we will have wait and see if longevity is a feature of FiiO’s products.
This is smaller than iPod Touch 6th Gen while weighing the same.
I have heard great things regarding Audio Apps on Android OS.
Fiio may have the edge in terms of outright driving power and sound quality. But I find AirPlay & the headphone jack on the iPod Touch 6 to be good enough for my needs.

UPDATE: This DAP can transmit Bluetooth LDAC codec to LDAC compatible devices.
Bluetooth receiving function available only after firmware update. Can receive in SBC & LDAC only.
(Yes this will make any wired headphones LDAC compatible, although LDAC is still a lossy codec it is the best codec Bluetooth has to offer [990 kbps] with Sony claiming CD quality) (and yes it seems a bit silly using this as a LDAC receiver when you could have lossless files playing on the device itself)

Although controlled by touch-screen FiiO M6 still has 3 buttons on the side to control play/pause, volume and next/previous track (Long press or double press and hold).

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FIIO M6 PORTABLE HIGH-RESOLUTION AUDIO PLAYER

Fiio’s final product of 2018
Supports Apple Airplay via WiFi, bi-directional communication via Bluetooth 4.2 and supports all the Bluetooth codecs available in the industry today, these include AAC, aptX, aptX HD, aptX LL, HWA, LDAC, and SBC.
Battery life: 13 hours / 15 hours Bluetooth (Standby [Deep-sleep-time] 26 days)
Charging time: ＜2.5 hours
Storage：Built-in storage（2GB）+ micro-SD card（up to 2TB supported）
WiFi：2.4GHz
Bluetooth：Version 4.2，supports LDAC，HWA，aptX HD，aptX，SBC
USB：Symmetrical Type C connector, USB2.0
Enough power to drive Sennheiser hd58x with headroom to spare. (according to Amazon reviewer)
Weighing in at just 83g, the DAP measures 53.3mm (W) x 92.5mm (L) x 11.5mm (H), a size similar to that of a name card and sports a 3.5mm single-ended headphone jack. DAC wise, the FiiO M6 will feature a single ES9018Q2C from ESS with improved circuitry which translated into a 50% increase in output power over a similar implementation in the M7. Similar to the FiiO M9, the M6 has an internal storage of 2GB with a single microSD slot supporting microSDXC for storage expansion.

Review: https://m.youtube.com/watch?v=EbByskNl4nk
If you are interested in knowing all the quirks and nuances.