Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) vs. Lenovo ThinkBook 15 G4 IAP (21DJ)

Laptop Comparison, Reviews and Tests

Side by side comparison and review of Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) and Lenovo ThinkBook 15 G4 IAP (21DJ). 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.

Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Review

Advantages and disadvantages of Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) based on its technical characteristics, features, user experience, expert reviews and price level.

slim lightweight design

fast ssd storage

good battery life

comfortable keyboard

decent display quality

average graphics performance

no thunderbolt support

limited port selection

mediocre speaker quality

Lenovo ThinkBook 15 G4 IAP (21DJ) Review

Advantages and disadvantages of Lenovo ThinkBook 15 G4 IAP (21DJ) based on its technical characteristics, features, user experience, expert reviews and price level.

robust aluminum design

efficient multitasking performance

comprehensive connectivity options

fast charging support

competitive pricing

average display quality

modest battery life

limited graphics performance

noisy under load

Laptop Comparison and Tests

Difference between Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) and Lenovo ThinkBook 15 G4 IAP (21DJ)
81 % - Design
72 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery
81 % - Design
72 % - Display
75 % - Performance
86 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) vs. Lenovo ThinkBook 15 G4 IAP (21DJ) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 30.76 cm x 21.64 cm x 1.59 cm 35.7 cm x 23.5 cm x 1.89 cm
Weight 1.32 kg 1.7 kg
Case Material Aluminum Aluminium (top), polycarbonate ABS (bottom)
Colour Mineral grey Dual tone mineral grey
DISPLAY Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Screen Size (Type) 13.3" - IPS 15.6" - IPS
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 300 cd/m² 300 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare, 170° viewing angle, Dolby Vision Anti-glare, 170° viewing angle
PROCESSOR Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
CPU Intel Core i5 (10th Gen) 10210U / 1.6 GHz Intel Core i5 (12th Gen) 1235U / 1.3 GHz
Max Turbo Speed 4.2 GHz 4.4 GHz
Number of Cores Quad-Core 10-core
Cache 6 MB 12 MB
64-bit Computing Yes -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
RAM 8 GB (1 x 8 GB) 8 GB (provided memory is soldered)
Max RAM Supported 16 GB 40 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2666 MHz 3200 MHz
Rated Speed 2666 MHz 3200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 1
Empty Slots 0 1
STORAGE Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Graphics Processor (GPU) Intel UHD Graphics Intel Iris Xe Graphics
Max Monitors Supported - 3 external monitor(s)
Camera Yes - 720p Yes - 1080p
Camera Features ThinkShutter camera privacy Privacy shutter, fixed focus
Sound Stereo speakers, dual array microphone Stereo speakers, dual array microphone
Codec - Realtek ALC3287
Compliant Standards High Definition Audio, Dolby Audio X3 High Definition Audio, Dolby Audio
Audio Features Harman audio technology -
COMMUNICATIONS Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Wireless 802.11a/b/g/n/ac, Bluetooth 5.0 802.11a/b/g/n/ac/ax, Bluetooth 5.2
Wireless Controller M.2 Card M.2 Card
Network Interface - Gigabit Ethernet
Ethernet Controller - Intel I219-V
Features Dual stream (2x2) Wake-on-LAN (WOL), dual stream (2x2)
BATTERY Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Technology Lithium Ion Lithium polymer
Battery Capacity (Size) 45 Wh 45 Wh
Battery Life Up to 11 hours Up to 8 hours
Battery Run Time - Local video (1080p) playback time (150 nits): up to 8 hours
AC ADAPTER Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad - Yes
Keyboard Backlight Yes Yes
Features Multi-touch touchpad, buttonless touchpad Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad
CONNECTIONS & EXPANSIONS Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery)
HDMI
Headphone/microphone combo jack
2 x USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI
LAN
Headphone/microphone combo jack
Memory Card Reader - 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 11 Pro - English
Software Included Microsoft Office (30 days trial) Microsoft Office (Trial)
MISCELLANEOUS Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) Lenovo ThinkBook 15 G4 IAP (21DJ)
Included Accessories USB-C power adapter USB-C slim wall mount power adapter
Security Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware 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 Administrator password, hard drive password, power-on password, RapidCharge Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 3, TUV Rheinland Low Blue Light (Software Solution)
SAR Value 0.568 W/kg (body), 0.568 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 - 3 years - pick-up and return Limited warranty - 1 year - pick-up and return
Model Number IML 20RR -
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