The primary aim of this study is to compare hand grip strength results in children aged 11 to 13 years with different sports statuses. The secondary goal of this research was to determine the correlation of results obtained using two different measurement instruments (Takei dynamometer and Jamar dynamometer) for assessing handgrip strength. The study involved 228 participants, divided into two groups. The first group consisted of 144 children engaged in sports, while the second group included 84 children who do not participate in sports. Both groups were tested using two different measurement instruments to assess handgrip strength. The handgrip strength was tested with Takei and Jamar dynamometers. After conducting the analysis, the results were presented, and basic descriptive parameters were used to describe the results: arithmetic mean (M), standard deviation (SD), minimum (MIN), maximum (MAX), and distribution parameters (skewness, kurtosis). The assessment of skewness and kurtosis shows that the distributions of these variables are slightly asymmetrical, but these deviations are objectively negligible. The normality of the distribution was verified using the Kolmogorov-Smirnov test. The difference between the two sample groups was determined using a T-test. A non-parametric statistical method was used to assess the relationship between the two studied variables, namely correlation (r), and the coefficient of determination (r²) was also obtained. Based on the results, it can be concluded that the participants achieved similar results on both dynamometers and that athletes performed better than non-athletes. This outcome can primarily be attributed to the impact of sports activities, which help children in their better growth and development.