What's the difference between an NVR and a hybrid DVR in this range?

An NVR (like the ANNKE PoE model or Hikvision PoE 4K/8K NVRs) takes IP cameras only; a hybrid DVR (like the Dahua EZ-IP or Hikvision AcuSense DVRs) can take analogue, HD-TVI/AHD and IP inputs on the same unit.

16-Channel NVR & DVR Recorders | UK Trade CCTV

16-Channel NVR & DVR Recorders

Sixteen-channel recorders sit at the mid-tier of most installs — enough headroom for a full retail unit, warehouse, or multi-floor office without stepping up to a 32-channel chassis. This range mixes IP-only NVRs and hybrid DVRs (analogue/HD-TVI/AHD/IP on one chassis) across 1080p, 4MP, 5MP, 8MP and 4K/8MP-4K resolutions.

How to choose

IP vs hybrid: NVRs here (ANNKE, Hikvision PoE 4K/8K, Prolux ePoE) take IP cameras only; hybrid DVRs (Dahua EZ-IP, Hikvision AcuSense DVRs, Prolux PXD-8216, the unbranded 5MP hybrid) accept a mix of analogue and IP inputs — useful when replacing an existing coax run without a full re-cable.
Built-in PoE: several units (Hikvision 16 PoE 4K NVR, 16 PoE 8K NVR, ANNKE PoE NVR, Prolux ePoE NVR) supply camera power directly from the recorder, cutting down on separate PoE switch requirements.
Resolution ceiling: match recorder resolution support to your camera spec — 4MP, 5MP and 8MP models here won't be fully utilised by older 1080p cameras, and the reverse causes bottlenecking.
Output: most models list HDMI output; check 4K HDMI support specifically if a 4K monitor is part of the spec.
Compatibility: Hikvision AcuSense models and the Prolux PXD-8216 (marketed as a DS-7216HQHI-K1 equivalent) matter for engineers standardising on existing NVR/DVR fleets or menu layouts.

Choose by input type first, then resolution, then PoE requirement.