diff --git a/Package.swift b/Package.swift
index 8402e52..041b6c9 100644
--- a/Package.swift
+++ b/Package.swift
@@ -23,6 +23,7 @@ let package = Package(
     .iOS(.v11),
     .macOS(.v10_13),
     .macCatalyst(.v13),
+    .watchOS(.v4)
   ],
   products: [
     .library(
diff --git a/Sources/GoogleAI/Chat.swift b/Sources/GoogleAI/Chat.swift
index 6549df4..ebb9c65 100644
--- a/Sources/GoogleAI/Chat.swift
+++ b/Sources/GoogleAI/Chat.swift
@@ -16,7 +16,7 @@ import Foundation
 
 /// An object that represents a back-and-forth chat with a model, capturing the history and saving
 /// the context in memory between each message sent.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 public class Chat {
   private let model: GenerativeModel
 
@@ -84,7 +84,7 @@ public class Chat {
   /// and response will be added to the history. If unsuccessful, history will remain unchanged.
   /// - Parameter parts: The new content to send as a single chat message.
   /// - Returns: A stream containing the model's response or an error if an error occurred.
-  @available(macOS 12.0, *)
+  @available(macOS 12.0, watchOS 8.0, *)
   public func sendMessageStream(_ parts: any ThrowingPartsRepresentable...)
     -> AsyncThrowingStream<GenerateContentResponse, Error> {
     return try sendMessageStream([ModelContent(parts: parts)])
@@ -94,7 +94,7 @@ public class Chat {
   /// and response will be added to the history. If unsuccessful, history will remain unchanged.
   /// - Parameter content: The new content to send as a single chat message.
   /// - Returns: A stream containing the model's response or an error if an error occurred.
-  @available(macOS 12.0, *)
+  @available(macOS 12.0, watchOS 8.0, *)
   public func sendMessageStream(_ content: @autoclosure () throws -> [ModelContent])
     -> AsyncThrowingStream<GenerateContentResponse, Error> {
     let resolvedContent: [ModelContent]
@@ -188,4 +188,4 @@ public class Chat {
       return ModelContent(role: "user", parts: content.parts)
     }
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/CountTokensRequest.swift b/Sources/GoogleAI/CountTokensRequest.swift
index d8bfc0e..3c5de5f 100644
--- a/Sources/GoogleAI/CountTokensRequest.swift
+++ b/Sources/GoogleAI/CountTokensRequest.swift
@@ -47,4 +47,4 @@ extension CountTokensRequest: Encodable {
 }
 
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
-extension CountTokensResponse: Decodable {}
+extension CountTokensResponse: Decodable {}
\ No newline at end of file
diff --git a/Sources/GoogleAI/Errors.swift b/Sources/GoogleAI/Errors.swift
index 35e7e6b..d534343 100644
--- a/Sources/GoogleAI/Errors.swift
+++ b/Sources/GoogleAI/Errors.swift
@@ -186,4 +186,4 @@ enum RPCErrorMessage: String {
 enum InvalidCandidateError: Error {
   case emptyContent(underlyingError: Error)
   case malformedContent(underlyingError: Error)
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/FunctionCalling.swift b/Sources/GoogleAI/FunctionCalling.swift
index 57130eb..ca88246 100644
--- a/Sources/GoogleAI/FunctionCalling.swift
+++ b/Sources/GoogleAI/FunctionCalling.swift
@@ -292,4 +292,4 @@ extension FunctionCallingConfig.Mode: Encodable {}
 
 extension ToolConfig: Encodable {}
 
-extension FunctionResponse: Encodable {}
+extension FunctionResponse: Encodable {}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerateContentError.swift b/Sources/GoogleAI/GenerateContentError.swift
index 055928e..63f18b2 100644
--- a/Sources/GoogleAI/GenerateContentError.swift
+++ b/Sources/GoogleAI/GenerateContentError.swift
@@ -15,7 +15,7 @@
 import Foundation
 
 /// Errors that occur when generating content from a model.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 public enum GenerateContentError: Error {
   /// An error occurred when constructing the prompt. Examine the related error for details.
   case promptImageContentError(underlying: ImageConversionError)
@@ -41,4 +41,4 @@ public enum GenerateContentError: Error {
   /// - Important: The API is only available in
   /// [specific regions](https://ai.google.dev/available_regions#available_regions).
   case unsupportedUserLocation
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerateContentRequest.swift b/Sources/GoogleAI/GenerateContentRequest.swift
index c360583..49ba5e8 100644
--- a/Sources/GoogleAI/GenerateContentRequest.swift
+++ b/Sources/GoogleAI/GenerateContentRequest.swift
@@ -41,7 +41,7 @@ extension GenerateContentRequest: Encodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension GenerateContentRequest: GenerativeAIRequest {
   typealias Response = GenerateContentResponse
 
@@ -53,4 +53,4 @@ extension GenerateContentRequest: GenerativeAIRequest {
       return URL(string: "\(modelURL):generateContent")!
     }
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerateContentResponse.swift b/Sources/GoogleAI/GenerateContentResponse.swift
index 04c41f7..27a3e17 100644
--- a/Sources/GoogleAI/GenerateContentResponse.swift
+++ b/Sources/GoogleAI/GenerateContentResponse.swift
@@ -15,7 +15,7 @@
 import Foundation
 
 /// The model's response to a generate content request.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 public struct GenerateContentResponse {
   /// Token usage metadata for processing the generate content request.
   public struct UsageMetadata {
@@ -188,7 +188,7 @@ public struct PromptFeedback {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension GenerateContentResponse: Decodable {
   enum CodingKeys: CodingKey {
     case candidates
@@ -222,7 +222,7 @@ extension GenerateContentResponse: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension GenerateContentResponse.UsageMetadata: Decodable {
   enum CodingKeys: CodingKey {
     case promptTokenCount
@@ -312,7 +312,7 @@ extension Citation: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension FinishReason: Decodable {
   public init(from decoder: Decoder) throws {
     let value = try decoder.singleValueContainer().decode(String.self)
@@ -327,7 +327,7 @@ extension FinishReason: Decodable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension PromptFeedback.BlockReason: Decodable {
   public init(from decoder: Decoder) throws {
     let value = try decoder.singleValueContainer().decode(String.self)
@@ -364,4 +364,4 @@ extension PromptFeedback: Decodable {
       safetyRatings = []
     }
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerationConfig.swift b/Sources/GoogleAI/GenerationConfig.swift
index c4bd37c..f173b87 100644
--- a/Sources/GoogleAI/GenerationConfig.swift
+++ b/Sources/GoogleAI/GenerationConfig.swift
@@ -107,4 +107,4 @@ public struct GenerationConfig {
 // MARK: - Codable Conformances
 
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
-extension GenerationConfig: Encodable {}
+extension GenerationConfig: Encodable {}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerativeAIRequest.swift b/Sources/GoogleAI/GenerativeAIRequest.swift
index d468576..dd9693c 100644
--- a/Sources/GoogleAI/GenerativeAIRequest.swift
+++ b/Sources/GoogleAI/GenerativeAIRequest.swift
@@ -41,4 +41,4 @@ public struct RequestOptions {
     self.timeout = timeout
     self.apiVersion = apiVersion
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerativeAIService.swift b/Sources/GoogleAI/GenerativeAIService.swift
index ed0a6df..adafb47 100644
--- a/Sources/GoogleAI/GenerativeAIService.swift
+++ b/Sources/GoogleAI/GenerativeAIService.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 struct GenerativeAIService {
   /// Gives permission to talk to the backend.
   private let apiKey: String
@@ -52,7 +52,7 @@ struct GenerativeAIService {
     return try parseResponse(T.Response.self, from: data)
   }
 
-  @available(macOS 12.0, *)
+  @available(macOS 12.0, watchOS 8.0, *)
   func loadRequestStream<T: GenerativeAIRequest>(request: T)
     -> AsyncThrowingStream<T.Response, Error> {
     return AsyncThrowingStream { continuation in
@@ -161,6 +161,7 @@ struct GenerativeAIService {
     return urlRequest
   }
 
+  @available(watchOS 7.0, *)
   private func httpResponse(urlResponse: URLResponse) throws -> HTTPURLResponse {
     // Verify the status code is 200
     guard let response = urlResponse as? HTTPURLResponse else {
@@ -209,6 +210,7 @@ struct GenerativeAIService {
     }
   }
 
+  @available(watchOS 7.0, *)
   private func parseResponse<T: Decodable>(_ type: T.Type, from data: Data) throws -> T {
     do {
       return try JSONDecoder().decode(type, from: data)
@@ -222,6 +224,7 @@ struct GenerativeAIService {
   }
 
   #if DEBUG
+    @available(watchOS 7.0, *)
     private func cURLCommand(from request: URLRequest) -> String {
       var returnValue = "curl "
       if let allHeaders = request.allHTTPHeaderFields {
@@ -251,4 +254,4 @@ struct GenerativeAIService {
       """)
     }
   #endif // DEBUG
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerativeAISwift.swift b/Sources/GoogleAI/GenerativeAISwift.swift
index 0eb6253..52d0557 100644
--- a/Sources/GoogleAI/GenerativeAISwift.swift
+++ b/Sources/GoogleAI/GenerativeAISwift.swift
@@ -24,4 +24,4 @@ public enum GenerativeAISwift {
   public static let version = "0.5.4"
   /// The Google AI backend endpoint URL.
   static let baseURL = "https://generativelanguage.googleapis.com"
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/GenerativeModel.swift b/Sources/GoogleAI/GenerativeModel.swift
index fc9c985..d4ebdf5 100644
--- a/Sources/GoogleAI/GenerativeModel.swift
+++ b/Sources/GoogleAI/GenerativeModel.swift
@@ -16,7 +16,7 @@ import Foundation
 
 /// A type that represents a remote multimodal model (like Gemini), with the ability to generate
 /// content based on various input types.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 public final class GenerativeModel {
   // The prefix for a model resource in the Gemini API.
   private static let modelResourcePrefix = "models/"
@@ -220,7 +220,7 @@ public final class GenerativeModel {
   /// for conforming types).
   /// - Returns: A stream wrapping content generated by the model or a ``GenerateContentError``
   ///     error if an error occurred.
-  @available(macOS 12.0, *)
+  @available(macOS 12.0, watchOS 8.0, *)
   public func generateContentStream(_ parts: any ThrowingPartsRepresentable...)
     -> AsyncThrowingStream<GenerateContentResponse, Error> {
     return try generateContentStream([ModelContent(parts: parts)])
@@ -231,7 +231,7 @@ public final class GenerativeModel {
   /// - Parameter content: The input(s) given to the model as a prompt.
   /// - Returns: A stream wrapping content generated by the model or a ``GenerateContentError``
   ///     error if an error occurred.
-  @available(macOS 12.0, *)
+  @available(macOS 12.0, watchOS 8.0, *)
   public func generateContentStream(_ content: @autoclosure () throws -> [ModelContent])
     -> AsyncThrowingStream<GenerateContentResponse, Error> {
     let evaluatedContent: [ModelContent]
@@ -373,4 +373,4 @@ public final class GenerativeModel {
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
 public enum CountTokensError: Error {
   case internalError(underlying: Error)
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/JSONValue.swift b/Sources/GoogleAI/JSONValue.swift
index 5ce52cd..df87be7 100644
--- a/Sources/GoogleAI/JSONValue.swift
+++ b/Sources/GoogleAI/JSONValue.swift
@@ -93,4 +93,4 @@ extension JSONValue: Encodable {
   }
 }
 
-extension JSONValue: Equatable {}
+extension JSONValue: Equatable {}
\ No newline at end of file
diff --git a/Sources/GoogleAI/Logging.swift b/Sources/GoogleAI/Logging.swift
index 458c34e..16ffe24 100644
--- a/Sources/GoogleAI/Logging.swift
+++ b/Sources/GoogleAI/Logging.swift
@@ -15,7 +15,7 @@
 import Foundation
 import OSLog
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 struct Logging {
   /// Subsystem that should be used for all Loggers.
   static let subsystem = "com.google.generative-ai"
@@ -53,4 +53,4 @@ struct Logging {
       return Logger(.disabled)
     }
   }()
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/ModelContent.swift b/Sources/GoogleAI/ModelContent.swift
index 979c406..81471d9 100644
--- a/Sources/GoogleAI/ModelContent.swift
+++ b/Sources/GoogleAI/ModelContent.swift
@@ -188,4 +188,4 @@ extension ModelContent.Part: Codable {
       ))
     }
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/PartsRepresentable+Image.swift b/Sources/GoogleAI/PartsRepresentable+Image.swift
index 052a004..9dd8f76 100644
--- a/Sources/GoogleAI/PartsRepresentable+Image.swift
+++ b/Sources/GoogleAI/PartsRepresentable+Image.swift
@@ -19,6 +19,11 @@ import UniformTypeIdentifiers
   import AppKit // For NSImage extensions.
 #endif
 
+#if os(watchOS)
+  import ImageIO
+  import CoreGraphics
+#endif
+
 private let imageCompressionQuality: CGFloat = 0.8
 
 /// An enum describing failures that can occur when converting image types to model content data.
@@ -38,7 +43,7 @@ public enum ImageConversionError: Error {
 
 #if canImport(UIKit)
   /// Enables images to be representable as ``ThrowingPartsRepresentable``.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 8.0, *)
   extension UIImage: ThrowingPartsRepresentable {
     public func tryPartsValue() throws -> [ModelContent.Part] {
       guard let data = jpegData(compressionQuality: imageCompressionQuality) else {
@@ -50,7 +55,7 @@ public enum ImageConversionError: Error {
 
 #elseif canImport(AppKit)
   /// Enables images to be representable as ``ThrowingPartsRepresentable``.
-  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+  @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 8.0, *)
   extension NSImage: ThrowingPartsRepresentable {
     public func tryPartsValue() throws -> [ModelContent.Part] {
       guard let cgImage = cgImage(forProposedRect: nil, context: nil, hints: nil) else {
@@ -67,7 +72,7 @@ public enum ImageConversionError: Error {
 #endif
 
 /// Enables `CGImages` to be representable as model content.
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 9.0, *)
 extension CGImage: ThrowingPartsRepresentable {
   public func tryPartsValue() throws -> [ModelContent.Part] {
     let output = NSMutableData()
@@ -88,6 +93,7 @@ extension CGImage: ThrowingPartsRepresentable {
 }
 
 /// Enables `CIImages` to be representable as model content.
+#if !os(watchOS)
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
 extension CIImage: ThrowingPartsRepresentable {
   public func tryPartsValue() throws -> [ModelContent.Part] {
@@ -105,3 +111,4 @@ extension CIImage: ThrowingPartsRepresentable {
     throw ImageConversionError.couldNotConvertToJPEG(self)
   }
 }
+#endif
diff --git a/Sources/GoogleAI/PartsRepresentable.swift b/Sources/GoogleAI/PartsRepresentable.swift
index 05ba0d9..5251b47 100644
--- a/Sources/GoogleAI/PartsRepresentable.swift
+++ b/Sources/GoogleAI/PartsRepresentable.swift
@@ -63,4 +63,4 @@ extension String: PartsRepresentable {
   public var partsValue: [ModelContent.Part] {
     return [.text(self)]
   }
-}
+}
\ No newline at end of file
diff --git a/Sources/GoogleAI/Safety.swift b/Sources/GoogleAI/Safety.swift
index d2adc4a..d8b5d7c 100644
--- a/Sources/GoogleAI/Safety.swift
+++ b/Sources/GoogleAI/Safety.swift
@@ -143,7 +143,7 @@ public struct SafetySetting {
 
 // MARK: - Codable Conformances
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension SafetyRating.HarmProbability: Codable {
   public init(from decoder: Decoder) throws {
     let value = try decoder.singleValueContainer().decode(String.self)
@@ -164,7 +164,7 @@ extension SafetyRating: Decodable {}
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
 extension SafetyFeedback: Decodable {}
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension SafetySetting.HarmCategory: Codable {
   public init(from decoder: Decoder) throws {
     let value = try decoder.singleValueContainer().decode(String.self)
@@ -179,7 +179,7 @@ extension SafetySetting.HarmCategory: Codable {
   }
 }
 
-@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
+@available(iOS 15.0, macOS 11.0, macCatalyst 15.0, watchOS 7.0, *)
 extension SafetySetting.BlockThreshold: Codable {
   public init(from decoder: Decoder) throws {
     let value = try decoder.singleValueContainer().decode(String.self)
@@ -195,4 +195,4 @@ extension SafetySetting.BlockThreshold: Codable {
 }
 
 @available(iOS 15.0, macOS 11.0, macCatalyst 15.0, *)
-extension SafetySetting: Codable {}
+extension SafetySetting: Codable {}
\ No newline at end of file