Side by side comparison and review of Lenovo IdeaPad Flex 5 15IIL05 (81X3) and Lenovo ThinkPad X13 Yoga Gen 3 (21AX). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo IdeaPad Flex 5 15IIL05 (81X3) based on its technical characteristics, features, user experience, expert reviews and price level.
flexible 2-in-1 design
responsive touchscreen display
affordable price point
solid build quality
decent battery life
moderate display brightness
average processor speed
limited graphics performance
no thunderbolt support
Advantages and disadvantages of Lenovo ThinkPad X13 Yoga Gen 3 (21AX) based on its technical characteristics, features, user experience, expert reviews and price level.
highly flexible design
robust build quality
responsive touchscreen
excellent keyboard feel
good battery life
limited graphics power
high price point
moderate storage capacity
noisy under load
DESIGN AND DIMENSIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Product Type | Notebook - flip design | Notebook - flip design |
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Dimensions (WxDxH) | 35.76 cm x 23.79 cm x 2.09 cm | 30.5 cm x 21.415 cm x 1.59 cm |
Weight | 1.8 kg | 1.19 kg |
Case Material | Aluminum, polycarbonate ABS | Carbon fibre hybrid (top), carbon fibre hybrid (bottom) |
Colour | Graphite grey | Thunder black |
DISPLAY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Screen Size (Type) | 15.6" | 13.3" - IPS |
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Touchscreen | Yes (10-point multi-touch) | Yes (10-point multi-touch) |
LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:10 |
Image Brightness | 250 cd/m² | 300 cd/m² |
Colour Gamut | 45% | 100% sRGB |
Features | Glossy, One Glass Solution, Wide Viewing Angle, capacitive touch screen | Anti-reflective, anti-smudge, capacitive touch screen, 170° viewing angle |
PROCESSOR | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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CPU | Intel Core i3 (10th Gen) 1005G1 / 1.2 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
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Max Turbo Speed | 3.4 GHz | 4.4 GHz |
Number of Cores | Dual-Core | 10-core |
Cache | 4 MB | 12 MB |
64-bit Computing | Yes | - |
Features | Integrated memory controller | Integrated memory controller |
MEMORY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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RAM | 4 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
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RAM Type | DDR4 SDRAM | LPDDR4X SDRAM |
Speed | 3200 MHz | 4266 MHz |
Rated Speed | 3200 MHz | 4266 MHz |
STORAGE | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Main Storage Size (HDD/SSD) | 128 GB SSD M.2 2242 PCIe - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia |
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AUDIO & VIDEO | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
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Max Monitors Supported | - | 3 external monitor(s) |
Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
Camera | Yes - 720p | Yes - 1080p |
Camera Features | Privacy shutter, fixed focus | Privacy shutter, IR camera, Windows Hello, fixed focus |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | - | Realtek ALC3306 |
Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Audio, Dolby Voice |
COMMUNICATIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
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Wireless Controller | M.2 Card | Intel Wi-Fi 6E AX 211 |
Network Interface | - | Gigabit Ethernet |
Features | Dual stream (2x2) | - |
WWAN |
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Generation | - | 4G |
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Technology | - | LTE |
Controller | - | Quectel EM05-G - M.2 Card |
BATTERY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Technology | Lithium Ion | 3-cell lithium polymer |
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Battery Capacity (Size) | 52.5 Wh | 52.8 Wh |
Battery Life | Up to 10.5 hours | - |
AC ADAPTER | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt, 5 / 9 / 15 / 20 V |
INPUT | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Type | Keyboard, touchpad | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
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Numeric Keypad | Yes | - |
Keyboard Backlight | - | Yes |
Features | Multi-touch touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
CONNECTIONS & EXPANSIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Slots | - | 1 x Nano-SIM card (1 free) |
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Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 2.0 Alt Mode) (Power Delivery 3.0) HDMI LAN (on supplied adapter) Headphone/microphone combo jack |
Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
SOFTWARE | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Operating System (OS) | Windows 10 Home in S mode - English | Windows 11 Pro |
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Software Included | Microsoft Office (Trial) | - |
MISCELLANEOUS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | Lenovo ThinkPad X13 Yoga Gen 3 (21AX) |
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Included Accessories | Power adapter | USB-C power adapter, USB-C to Ethernet adapter, Lenovo Integrated Pen |
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Integrated Options | Accelerometer | - |
Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Security Slot Type | - | Kensington nano security slot |
Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
Features | Hard drive password, power-on password, RapidCharge, smart charge | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication |
Compliant Standards | RoHS, ERP | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified |
SAR Value | 1.624 W/kg (body), 1.624 W/kg (limb) | - |
ENERGY STAR Certified | Yes | Yes |
EPEAT Compliant | - | EPEAT Gold |
Max Operating Temperature | - | 35 °C |
Min Operating Temperature | - | 5 °C |
Humidity Range Operating | - | 8 - 95% |
Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | - |