While the Flex S design offers theoretical advantages, Samsung’s choice of the Flex G form factor for the Galaxy Z TriFold reflects a practical and user-focused approach grounded in real-world durability.
Samsung’s First Tri-Fold: A Bold Step, But a Safe One
Samsung’s newly unveiled Galaxy Z TriFold introduces the brand’s first dual-hinge folding phone—a milestone years in the making. Built on the Flex G form factor, the device folds inward twice, protecting the display completely when closed.
But Samsung’s own display division also developed a Flex S form factor, which folds in an S shape and leaves part of the display always exposed. So, was Flex G the right call?
In short: Yes. And here’s why.
Advantage: Flex S Is More Versatile—On Paper
It’s easy to see the appeal of the Flex S form factor:
- ✅ It enables three distinct usage modes:
- Compact phone mode using a single screen
- Folded-out “dual screen” mode (similar to a Fold-like experience)
- Full tablet mode using all three display sections
- ✅ It eliminates the need for a dedicated cover display, potentially lowering production costs and simplifying the design.
In contrast, Samsung’s Flex G design allows only two modes:
- Fully folded (phone mode)
- Fully unfolded (tablet mode)
That third, in-between “Fold-like” experience just isn’t possible with Flex G.
But in Reality, Flex G Wins Where It Counts
While the Flex S design looks better on paper, it poses significant durability challenges:
- ❌ It leaves part of the foldable display constantly exposed, making it far more vulnerable to scratches and impact damage.
- ❌ The outer hinge wraparound design means a fall could strike the display edge—a high-risk impact zone.
- ❌ Foldable screens, even with Samsung’s best efforts, still lack the resilience of rigid, glass-covered panels.
By contrast, Flex G offers full panel protection when folded—a key advantage in the real world, where phones get dropped, pocketed, or tossed into bags.
For a first-gen tri-fold device, Samsung wisely chose the safer route that prioritizes longevity, repairability, and user peace of mind.
The TriFold Balances Innovation and Practicality
Samsung didn’t just play it safe with the Flex G form factor—they made a conscious trade-off:
- ✅ Better display protection
- ✅ More reliable fold mechanics
- ✅ Easier to pocket and carry without worrying about scratching a fragile exposed screen
- ✅ Greater consumer confidence in a high-priced, experimental form factor
Sure, it may be less versatile than Flex S, but it’s far more realistic in its approach to current foldable limitations.
Flex S Could Still Be the Future—But Not Yet
The Flex S form factor isn’t a bad idea—it’s just ahead of its time.
When flexible displays:
- Become as scratch-resistant as glass
- Offer improved impact resistance
- And can bend tighter, last longer, and cost less
Then Flex S could return in a new product class, offering its multi-mode utility without compromising durability.
Until then, Samsung made the smart choice by choosing function and resilience over fragile ambition.








