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2026 comparison
Updated Jan 6, 2026
|Sources: Amazon, Manufacturer

Acer Aspire 5 15 Laptop Core i7-1355U) vs Lenovo IdeaPad Flex 5 14" 2-in-1

In the battle between the Acer Aspire 5 15 Laptop Core i7-1355U) and Lenovo IdeaPad Flex 5 14" 2-in-1, the Lenovo wins for versatility. It offers a unique 360-degree hinge, making it perfect for multiple modes of use and a more compact 14" display that delivers 1920x1200 resolution. Both laptops deliver 16GB RAM, but the Acer's performance shines in heavy tasks. Ultimately, your choice hinges on whether you value flexibility or raw power in real-world use.

📱 Display: 15.6" vs 14"⚖️ Weight: 62.79 oz vs 54.67 oz💻 Processor: Intel Core i7-1355U vs Ryzen 7 7730U

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Acer Aspire 5 15 Laptop Core i7-1355U)
Processor:Intel Core i7-1355U (Raptor Lake, 10 cores, up to 5.0 GHz)
Graphics:Intel Iris Xe Graphics (Integrated)
AI Engine:No (Not supported)
Cooling:Air (Single fan with TwinAir cooling design)
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Lenovo IdeaPad Flex 5 14" 2-in-1
Processor:AMD Ryzen 7 7730U (Barcelo-R, 8 cores, up to 4.5 GHz)
Graphics:AMD Radeon Graphics (Integrated)
AI Engine:No (Not supported)
Cooling:Air (Single fan)
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Key spec differences

Only the specs that differ are shown here. Winners are highlighted when the data is clear.

Display1 specs
Display SizeKey
Acer Aspire 5 15 Laptop Core i7-1355U)
15.6"Winner
Lenovo IdeaPad Flex 5 14" 2-in-1
14"
Performance2 specs
RAMKey
Acer Aspire 5 15 Laptop Core i7-1355U)
16 GB LPDDR5 (4800 MHz)
Lenovo IdeaPad Flex 5 14" 2-in-1
16 GB LPDDR4x-4266
Storage
Acer Aspire 5 15 Laptop Core i7-1355U)
512 GB PCIe Gen4 NVMe SSD
Lenovo IdeaPad Flex 5 14" 2-in-1
512 GB PCIe NVMe M.2 2242 SSD
Battery1 specs
Battery CapacityKey
Acer Aspire 5 15 Laptop Core i7-1355U)
50 Wh (3-cell Li-ion)
Lenovo IdeaPad Flex 5 14" 2-in-1
52.5 Wh (Polymer)
Design1 specs
Weight
Acer Aspire 5 15 Laptop Core i7-1355U)
1,780 g (3.92 lbs)
Lenovo IdeaPad Flex 5 14" 2-in-1
1,550 g (3.42 lbs)Winner
Connectivity1 specs
Connectivity
Acer Aspire 5 15 Laptop Core i7-1355U)
Wi-Fi 6E (802.11ax); Bluetooth 5.1
Lenovo IdeaPad Flex 5 14" 2-in-1
Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1
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Full specs, pros, and cons

Everything side-by-side with ratings and the full spec list.

Comparison: Acer Aspire 5 15 Laptop Core i7-1355U) vs Lenovo IdeaPad Flex 5 14" 2-in-1

Acer Aspire 5 15 Laptop Core i7-1355U)

Acer Aspire 5 15 Laptop Core i7-1355U)

4.3(107)Amazon
Lenovo IdeaPad Flex 5 14" 2-in-1

Lenovo IdeaPad Flex 5 14" 2-in-1

4.2(21)Amazon
Acer Aspire 5 15 Laptop Core i7-1355U)

Acer Aspire 5 15 Laptop Core i7-1355U)

Rating:4.3(107)Amazon
Processor:Intel Core i7-1355U (Raptor Lake, 10 cores, up to 5.0 GHz)
Graphics:Intel Iris Xe Graphics (Integrated)
AI Engine:No (Not supported)
Cooling:Air (Single fan with TwinAir cooling design)
RAM:16 GB LPDDR5 (4800 MHz)
RAM Upgrade:No (Soldered)
Storage:512 GB PCIe Gen4 NVMe SSD
Storage Upgrade:Yes (1x M.2 slot; user replaceable)
Display Size:15.6"
Resolution:1920 x 1080 (FHD)
Aspect Ratio:16:9
Screen Type:IPS (Anti-glare, ComfyView)
Refresh Rate:60 Hz
Brightness:250 nits (Typical)
Color Gamut:45% NTSC (approx. 60% sRGB)
Keyboard Layout:US English (ANSI) with NumPad
Keyboard Backlight:Yes
Biometrics:Fingerprint reader (Integrated in touchpad)
Webcam:1080p FHD webcam with Temporal Noise Reduction
USB Ports:1x Thunderbolt 4 (USB-C); 2x USB-A 3.2 Gen 1
Video Ports:1x HDMI 2.1 (Supports 4K@60Hz via Thunderbolt 4 or HDMI)
Audio Ports:1x 3.5mm Headphone/Mic combo jack
Connectivity:Wi-Fi 6E (802.11ax); Bluetooth 5.1
Battery:50 Wh (3-cell Li-ion)
Charger:65 W barrel-pin adapter
Weight:1,780 g (3.92 lbs)
Build Material:Aluminum (Lid) / Plastic (Chassis)
Operating System:Windows 11 Home

✓ Pros:

  • Includes Thunderbolt 4 port (rare in this price bracket)
  • Sharp 1080p webcam is an upgrade over typical 720p budget cams
  • Aluminum lid gives a premium feel to the exterior
  • Decent performance for office tasks with Core i7-1355U
  • Wi-Fi 6E support for faster wireless connectivity

✗ Cons:

  • RAM is soldered and cannot be upgraded (limited to 16GB)
  • Display has limited color coverage (45% NTSC), appearing washed out
  • Only one M.2 storage slot (no secondary drive support)
  • Battery life is average with a 50Wh capacity

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Lenovo IdeaPad Flex 5 14" 2-in-1

Lenovo IdeaPad Flex 5 14" 2-in-1

Rating:4.2(21)Amazon
Processor:AMD Ryzen 7 7730U (Barcelo-R, 8 cores, up to 4.5 GHz)
Graphics:AMD Radeon Graphics (Integrated)
AI Engine:No (Not supported)
Cooling:Air (Single fan)
RAM:16 GB LPDDR4x-4266
RAM Upgrade:No (Soldered)
Storage:512 GB PCIe NVMe M.2 2242 SSD
Storage Upgrade:Yes (1x M.2 2242 slot; supports up to 1TB)
Display Size:14"
Resolution:1920 x 1200 (WUXGA)
Aspect Ratio:16:10
Screen Type:IPS (Glossy; Touchscreen)
Refresh Rate:60 Hz
Brightness:300 nits
Color Gamut:45% NTSC (approx. 60% sRGB)
Keyboard Layout:US English (ANSI) without NumPad
Keyboard Backlight:Yes
Biometrics:Fingerprint reader (Palm rest)
Webcam:1080p FHD camera with Privacy Shutter
USB Ports:1x USB-C 3.2 Gen 2 (Power Delivery 3.0 / DisplayPort 1.4); 2x USB-A 3.2 Gen 1 (One Always On); 1x SD card reader
Video Ports:1x HDMI 1.4b (Supports up to 4K@30Hz)
Audio Ports:1x 3.5mm Headphone/Mic combo jack
Connectivity:Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1
Battery:52.5 Wh (Polymer)
Charger:65 W Round Tip (Barrel connector) adapter
Weight:1,550 g (3.42 lbs)
Build Material:PC-ABS + 40% GF (Plastic chassis)
Operating System:Windows 11 Home

✓ Pros:

  • Versatile 360-degree hinge allows for laptop, tent, stand, and tablet modes
  • Modern 16:10 WUXGA (1920x1200) resolution provides more vertical screen real estate
  • Includes USB-C with Power Delivery and DisplayPort 1.4 support
  • Physical privacy shutter on the 1080p webcam
  • Fingerprint reader included for secure login

✗ Cons:

  • Display color gamut is limited to 45% NTSC, resulting in less vibrant colors
  • HDMI 1.4b port is limited to 4K output at only 30Hz
  • RAM is soldered and cannot be upgraded
  • M.2 slot is limited to the physically shorter 2242 form factor

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Which one is better?

The Lenovo IdeaPad Flex 5 14" 2-in-1 is the better buy for most people - its 14" WUXGA display offers more vertical space, making it ideal for multitasking. That said, grab the Acer Aspire 5 15 Laptop Core i7-1355U) if you need superior processing power for demanding applications.

Who should buy each?

Choose the Acer Aspire 5 15 Laptop Core i7-1355U) if: you need intense multitasking with a Core i7 processor, prefer a larger 15.6" screen, or rely on a 1080p webcam for video calls.
Choose the Lenovo IdeaPad Flex 5 14" 2-in-1 if: you want a versatile laptop with tablet functionality, need a more compact design for travel, or benefit from a touchscreen with a 16:10 aspect ratio.

Conclusion

We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.

Frequently Asked Questions

+Which has better value?

Acer Aspire 5 15 Laptop Core i7-1355U) excels if you value includes thunderbolt 4 port (rare in this price bracket). Lenovo IdeaPad Flex 5 14" 2-in-1 is better if you prioritize versatile 360-degree hinge allows for laptop, tent, stand, and tablet modes. Pick based on your budget and daily use.

+Is this an independent review?

Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.

+Do newer models exist?

Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.

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