The consumer electronics waste has become a serious environmental concern (World Health Organization, 2024). A significant factor driving this issue is “premature obsolescence,” which refers to the premature discontinuation of a product use or the premature replacement of a functioning product with a new one (Magnier & Mugge, 2022; Ylä-Mella et al., 2022). Current consumer replacement theory attributes this phenomenon to psychological value trade-offs, where consumers prematurely value new products over their current ones(Van den Berge et al., 2021). This shift is often driven by an attraction to novel features, updated designs, and the overall sense of novelty offered by new products on the market, while their owned devices increasingly lose appeal due to familiarity and boredom (Echegaray, 2016; Van den Berge et al., 2021). Although existing research highlights the importance of preserving the perceived value of owned products to combat premature obsolescence (Magnier & Mugge, 2022; Van Nes, 2016), effective design strategies are underexplored. This study aims to explore design strategies to preserve value of owned consumer electronics, focusing on strengthening their epistemic value to prolong product lifetime and reduce waste. [...]

With more and more people adopting wearable fitness devices to help them carry out physical activities more regularly, the market analysis reports a relatively high abandonment rate after six months of usage. This article aims to contribute to consumer study in fitness wearable technology by understanding the underlying determinants of consumer’s continuance intention to use wearable fitness devices (e.g., fitness trackers), and proposing a few suggestions to fitness wearable companies and designers for further product development. This research article consists of two empirical studies. In the first study, we propose a research model that is based on the expectation-confirmation model and integrates two extra factors, which are 'technology innovativeness’ and 'eHealth literacy’. The data collection is done via online surveys. The second study is intended to design upon the findings from the first study, during which we did arrange an offline education intervention for student participants and conduct a 2 × 2 experimental study. For both studies, we use quantitative methods to analyse data and draw conclusions. From the first study, we found that users’ technology innovativeness and eHealth literacy will indirectly influence their continuous intention to use wearable fitness devices. The second study reveals that male consumers tend to increase their continuance intention to use wearable fitness devices when their eHealth literacy has been enhanced by training. To sum up, the value of this article lies in two aspects. First, it is the first study in the field of fitness wearable technology (FWT) to learn how consumer behaviour will be influenced by a person’s eHealth literacy. Second, our study goes further to investigate to what extent the improvement of eHealth literacy will influence consumer’s continuous intention.