The iQOO 13 ships with Android 15-based Funtouch OS 15. While some users find Funtouch OS "simple" and "clean", others describe the Ul as "quite odd" with specific usability quirks like unusual button placement and a "tiny" keyboard. A recurring criticism across iQOO models running Funtouch OS is the presence of bloatware and "suggestions" (ads) on the lock screen, within apps, and in notifications, which can detract from the user experience. Although one review stated the iQOO 13 specifically does not come with bloatware, the

general Funtouch OS reputation for it persists.

iQOO has officially committed to a competitive software update policy for its flagships, including the iQOO 13, promising 4 years of Android OS upgrades and 5 years of security patches. This is a positive step towards device longevity.

However, despite this stated policy, there is consistent user feedback citing numerous Funtouch OS bugs and performance degradation after updates. Users report issues such as:

The camera app crashing.

"Camera downgrade issue" where clarity decreases after an update.

Performance decline in demanding games post-FuntouchOS updates.

"Battery drains faster" and "heating issue" often linked to recent software updates.

The 120Hz display "stucking and feeling like a lag". 

A "flickering issue at low brightness" due to improper refresh rate tuning.

The "force dark mode" setting resetting after a phone restart. 

A "no proper optimization" sentiment, with updates perceived as mere "patch updates" rather than performance improvements.

An "auto restart problem" reported by many users. 

Lack of proper call notification overlap. 

The volume and persistence of these reported bugs, some of which are introduced or exacerbated by updates, strongly suggest that iQOO's rapid product launch cycle may strain its software development and quality assurance processes. The continuous pressure to release new hardware could divert resources away from thoroughly refining Funtouch OS and comprehensively testing updates for existing devices. This can lead to rushed software releases and a backlog of unaddressed issues, directly contributing to the perception that software support and bug fixing are neglected, even with a stated long-term update policy.

Conclusion

The iQOO 13 is a powerhouse in terms of hardware, offering top-tier performance, a stunning display, and excellent battery life with rapid charging. Its competitive pricing makes it an attractive option for users prioritizing raw specifications and gaming. However, the user's concern about iQOO "forgot[ting] software update & fixing bugs" is largely validated by the numerous and persistent software issues reported by users across Funtouch OS, including those affecting the iQOO 13 itself. While iQOO has committed to a respectable software update policy for its flagships, the quality and effectiveness of these updates, along with the overall software experience, remain significant drawbacks. For prospective buyers, the iQOO 13 offers exceptional hardware value, but it comes with the caveat of a software experience that may require patience for bug fixes and a willingness to tolerate occasional inconsistencies.