September 2021 · 5.4" · A15 Bionic
A reasonable buy if the price is right -- £169.00 refurbished is worth considering, though newer models offer meaningfully more remaining software support.
Currently trading in for up to £205.00 in Excellent condition across recyclers GadgetRank compares. Trade-in values generally decline over time, so there is rarely a financial advantage to waiting if you already plan to sell.