According to Jainism, Chaturmas (also spelled as Chomasa or Chaumasa) is a holy period of four months during the rainy season, observed with increased focus on spiritual practices, penance, and minimizing harm to living beings. During Chaturmas, many Jains adopt stricter vows and avoid starting new ventures, major purchases, or making significant material changes, as it is considered a time for spiritual reflection rather than material pursuits.

While buying essential items is generally permitted, purchasing non-essential items like a new mobile phone is traditionally discouraged unless it is absolutely necessary. If the purchase is urgent and unavoidable (for example, if your current phone is broken and you need it for essential communication), you may proceed, but with the right intention and after seeking guidance from a knowledgeable Jain monk or scholar.

Otherwise, it is recommended to postpone such purchases until after Chaturmas. Always consult your local Jain community or spiritual guide for specific interpretations and practices, as customs can vary among sects and families.