Objective: To evaluate the feasibility and reproducibility of two field tests for upper limbs (Unsupported Upper Limb Exercise Test - UULEX and Six-Minute Pegboard Ring Test - 6PBRT) in children and adolescents. Methods: Feasibility study. Fifteen healthy volunteers aged 6 to 17 years were included. Lung function was performed, followed by: Cardiopulmonary Exercise Test (CPET), UULEX and 6PBRT. The CPET was performed on an upper limb ergometer using an incremental protocol. UULEX: seated arm-raising while holding weighted bars (0.25–2.0 kg) through graded heights; outcome = test duration (min). 6PBRT: seated transfer of rings between lower and upper pegs for 6 min; outcome = total rings moved. For all tests, peak oxygen consumption (VO 2peak) was also an outcome. The UULEX and 6PBRT were performed twice each (test and retest), 30-minute apart. Feasibility criteria were (i) no major procedural difficulties and (ii) < 15 % of participants reaching ceiling or floor thresholds. Results: 15 volunteers, median age 11 [9-15] years-old, and normal lung function (> 80% predicted). No volunteers considered the tests challenging. UULEX: Two volunteers (13%) reached the celling (13 min), none reached the floor (1 min). 6MPRT: no ceiling cases, one volunteer (6%) stopped above the floor (206 rings). The UULEX test vs. retest was 9.5 [8.0 - 12.0] min vs. 9.4 [8.2-12.0] min (p = 0.13) (ICC = 0.93 (0.78–0.97), p < 0.001). The 6PBRT test vs. retest was 299 [258-373] rings vs. 340 [244-387] rings (p = 0.05) (ICC = 0.97 (0.91–0.99), p < 0.001). Standard errors were < 10 % of their respective medians. The CPET elicited higher VO 2peak (22.8 [19.4–26] mL/kg•min -1) compared to UULEX (11.8 [10.2-13.6] mL/kg) or 6PBRT (11.6 [9–12] mL/kg) (p = 0.001). Conclusion: Both UULEX and 6PBRT are feasible and reproducible field tests for upper limbs in children and adolescents, providing practical options for upper-limb functional assessment.