Rollable Screen Device

Rollable screen devices are the next generation of flexible display technology — going beyond foldable phones. Instead of folding in half, rollable screens can expand in size by rolling out from inside the device body, like a scroll of paper. When closed, the device is the size of a regular phone; when opened, the display expands by 30-100% more screen area.

This technology is still very new — mostly concepts and experimental products from LG, Samsung, TCL, OPPO, and Motorola. Only a few commercial products exist, such as the LG Signature OLED R (rollable TV, priced at $60,000) and the Motorola Rizr (concept phone). This guide will help you understand the potential and risks when buying your first rollable device.

What to Know When Buying a Rollable Screen Device

Five key factors: rolling mechanism, screen durability, expansion ratio, weight and thickness, investment value.

Rolling mechanism — this is the biggest technological difference between products. A motorized mechanism (using a mini motor for automatic rolling) like on the LG OLED R or Motorola Rizr — smooth, but adds failure points and slight noise. A manual mechanism (hand-pulled) like on the OPPO Slide concept — simpler, more durable, but less premium. Hybrid mechanisms combine both.

Screen durability — rollable screens must endure more bending stress than foldable screens because they roll around a spindle with a small curvature radius (3-5mm). Current flexible OLED technology can withstand 100,000-200,000 rolls, equivalent to 5-10 years of use. However, dust entering the rolling mechanism is a major risk — current products (like the LG OLED R) have low IP ratings.

Expansion ratio — the main differentiator between products. Rollable phones typically expand from 5-6 inches to 7-8 inches (30-50% increase). Rollable TVs go from 55-65 inches, emerging from a compact base. The LG OLED Signature R opens to 65 inches from a 60×20cm base box.

Weight and thickness — the rolling mechanism makes devices significantly thicker than regular phones. Rollable phones are 12-15mm thick (vs 7-8mm for regular phones). Rollable TVs have a very heavy base (soundbar/base) — the LG OLED R weighs 63kg.

Investment value — these are first-generation products that will depreciate quickly, and the technology will improve significantly in 2-3 years. Only buy if you are a tech enthusiast who wants an early experience and is willing to accept 50-70% depreciation after 2 years.

Key Specifications

Specification	Description	Recommendation
Panel Technology	Flexible OLED (Flexible/POLED)	OLED is the only current standard
Closed Size	Phone: 5.5-6" (closed), TV: 0" (rolled into base)	Smaller is more compact when closed
Expanded Size	Phone: 7-8", TV: 55-65"	≥7.5" for phones, 55" for TVs
Rolling Mechanism	Motorized, Manual, Hybrid	Motorized for automatic, Manual for durability
Durability (roll count)	100,000 - 200,000 cycles	100,000+ is enough for 5-10 years
Dust/Water Resistance	Usually low IP (dust can enter the mechanism)	Check carefully — most don't have good IP ratings yet
Thickness (when closed)	Phone: 12-15mm, TV: 60-80cm (base)	50% thicker than regular phones
Connectivity	USB-C, HDMI (TV), WiFi 6/7	USB-C DP Alt Mode for phones

Types of Rollable Screen Devices

Rollable Phone

A phone with an expandable body, with the screen rolling out from inside. The Motorola Rizr is the most notable concept: a 5.6-inch screen rolls out to 6.5 inches — similar to the OPPO Slide and TCL rollable concepts. No commercial products have launched globally yet (as of 2025). Several models are in development: Samsung Galaxy Z Roll (rumored), OPPO Find N Roll (concept), TCL Rollable Phone. High risk if buying experimental or prototype units.

Rollable TV

The only commercial product currently available: the LG Signature OLED R (priced around $60,000). A 65-inch 4K OLED TV that rolls up from a soundbar base when turned on — disappearing completely when off. 4K resolution, 120Hz refresh rate, Dolby Vision/Atmos support. Competitors like Samsung and Hisense are developing rollable TVs but haven't launched yet. A product exclusively for the ultra-wealthy — maintenance and repair costs are very high.

Rollable Laptop / Monitor

A laptop with an expanding rollable screen — for example, the ThinkPad Slide (Lenovo concept) with a 13-inch screen that rolls out to 18 inches. The Asus Zenbook 17 Fold (foldable, not rollable) is a first step. No commercial rollable products have launched yet. Suitable for creatives who need a large screen in a compact laptop form.

Rollable Desktop Monitor (Concept)

The Corsair Xeneon Flex (42-inch OLED, manually bendable) and LG Bendable 42LX3Q are hybrid products — they can bend between flat and curved, but aren't truly rollable/collapsible. These are stepping stones before rollable desktop monitors arrive.

Price Tiers

Tier	Price	Features	Examples
Concept phones	No commercial price	Prototypes, not officially sold, very high risk	Motorola Rizr, OPPO Slide, TCL Rollable
Commercial rollable TV	1.2 - 1.5 billion VND	LG OLED R 65", 4K, motorized, Dolby Atmos	LG Signature OLED R (~$60,000)
Bendable monitor (hybrid)	30 - 60 million VND	OLED 42-45", manually bendable, not rollable	Corsair Xeneon Flex 42", LG 42LX3Q
Foldable (temporary alternative)	10 - 45 million VND	Folding replaces rolling — more mature technology	Samsung Z Fold/Flip, OnePlus Open

Top Brands

Brand	Known For	Segment
LG	Signature OLED R — first and only commercial rollable TV	Flagship (ultra-luxury)
Samsung	Developing Galaxy Z Roll, Flex Slidable, many patents	Concept - Future
Motorola (Lenovo)	Rizr — most impressive rollable phone concept	Concept
OPPO	X 2021 Rollable concept, smooth motorized design	Concept
TCL	Many rollable concepts at CES, pushing fold/roll	Concept - Mid-Range
Lenovo	ThinkPad Slide laptop concept — 13" screen rolls to 18"	Concept

Comparison with Other Options

Rollable vs Foldable Devices

Foldables have been around for 5+ generations, are more durable, cheaper, and easier to buy. Rollables have their advantages: no center crease (since the screen rolls from one side instead of folding in half), more flexible aspect ratio (can stop at any point between closed and fully open), and a slimmer design (no folding hinge, so thinner overall). However, rollables have no mass-market commercial products yet, and durability is unproven.

LG Rollable TV vs Regular 65-Inch TV

The LG Signature OLED R costs 20-30 times more than a regular 65-inch OLED TV (LG C4 65" priced at 25-35 million VND). A regular TV offers similar picture quality (same OLED panel), same Dolby Vision/Atmos features, and the same webOS. The only difference: the rollable TV completely disappears when off — ideal for minimalist design apartments or luxurious living rooms. If your budget is under 100 million VND, don't consider a rollable TV.

Rollable Display vs Portable Monitor

Portable monitors 15-18 inches (ASUS ZenScreen, Uperfect, Arzopa) cost 2-5 million VND, work immediately, don't require complex technology, are durable, and easy to replace. Rollable displays are ideal for the "large screen from a small pocket" experience but are far from practical. If you need a portable display today, a portable monitor is a much wiser choice.

Common Mistakes When Buying

• Buying concept/prototype products — The Motorola Rizr and OPPO Slide are not commercial products. If bought via eBay/Taobao, you get no warranty, no software updates, and often an incomplete prototype. Risk of total loss.
• Assuming rollable will replace foldable soon — Rollables are still 3-5 years away from mainstream consumers. Rolling technology is still solving issues with dust, mechanical durability, and production costs.
• Not checking IP (dust resistance) — The rolling mechanism has much larger gaps than a foldable hinge. A single grain of sand can damage the screen or jam the rolling mechanism.
• Buying as a value-preserving investment — The newest technology depreciates the fastest. The LG OLED R costs $60,000 new; after 2 years you'd be lucky to sell it for $15,000-20,000.
• Ignoring the TV's soundbar/base size — The LG OLED R base weighs 63kg, needs two people to carry, cannot be wall-mounted, and requires clearance below the TV for rolling. Measure your space carefully before buying.

Conclusion

Rollable screen devices are a promising technology but still in their early stages. If you have an unlimited budget and want to own a piece of tech art, the LG Signature OLED R is the only option — but understand that you're paying 50 million VND for the rolling mechanism and 10 million VND for a 65-inch OLED TV. For mainstream users, foldable phones are a much more practical choice — proven over multiple generations, reasonably priced, and come with official warranties.

My advice: follow rollable technology but don't buy yet. Wait at least 2-3 years until Samsung, OPPO, and Motorola launch their first-generation commercial products (expected 2026-2028). By then, the technology will be more mature, prices will be more reasonable, and software ecosystems will be in place.

Further reading: Michael Fisher (MrMobile) Rollable Reviews, r/Rollable, FlatpanelsHD