diff --git a/src/NimBLEClient.cpp b/src/NimBLEClient.cpp
index 7054f93e..05cc53ec 100644
--- a/src/NimBLEClient.cpp
+++ b/src/NimBLEClient.cpp
@@ -388,7 +388,49 @@ void NimBLEClient::setConfig(NimBLEClient::Config config) {
  */
 void NimBLEClient::setConnectPhy(uint8_t mask) {
     m_phyMask = mask;
-}
+} // setConnectPhy
+
+/**
+ * @brief Request a change to the PHY used for this peer connection.
+ * @param [in] txPhyMask TX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @param [in] rxPhyMask RX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @param phyOptions Additional PHY options. Valid values are:
+ * - BLE_GAP_LE_PHY_CODED_ANY (default)
+ * - BLE_GAP_LE_PHY_CODED_S2
+ * - BLE_GAP_LE_PHY_CODED_S8
+ * @return True if successful.
+ */
+bool NimBLEClient::updatePhy(uint8_t txPhysMask, uint8_t rxPhysMask, uint16_t phyOptions) {
+    int rc = ble_gap_set_prefered_le_phy(m_connHandle, txPhysMask, rxPhysMask, phyOptions);
+    if (rc != 0) {
+        NIMBLE_LOGE(LOG_TAG, "Failed to update phy; rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
+    }
+
+    return rc == 0;
+} // updatePhy
+
+/**
+ * @brief Get the PHY used for this peer connection.
+ * @param [out] txPhy The TX PHY.
+ * @param [out] rxPhy The RX PHY.
+ * @return True if successful.
+ */
+bool NimBLEClient::getPhy(uint8_t* txPhy, uint8_t* rxPhy) {
+    int rc = ble_gap_read_le_phy(m_connHandle, txPhy, rxPhy);
+    if (rc != 0) {
+        NIMBLE_LOGE(LOG_TAG, "Failed to read phy; rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
+    }
+
+    return rc == 0;
+} // getPhy
 # endif
 
 /**
diff --git a/src/NimBLEClient.h b/src/NimBLEClient.h
index 430e3c6f..2ab3627f 100644
--- a/src/NimBLEClient.h
+++ b/src/NimBLEClient.h
@@ -93,7 +93,9 @@ class NimBLEClient {
                             bool                  response = false);
 
 # if CONFIG_BT_NIMBLE_EXT_ADV
-    void setConnectPhy(uint8_t mask);
+    void setConnectPhy(uint8_t phyMask);
+    bool updatePhy(uint8_t txPhysMask, uint8_t rxPhysMask, uint16_t phyOptions = 0);
+    bool getPhy(uint8_t* txPhy, uint8_t* rxPhy);
 # endif
 
     struct Config {
diff --git a/src/NimBLEDevice.cpp b/src/NimBLEDevice.cpp
index 07c01ac1..c109cfcf 100644
--- a/src/NimBLEDevice.cpp
+++ b/src/NimBLEDevice.cpp
@@ -711,6 +711,31 @@ NimBLEAddress NimBLEDevice::getWhiteListAddress(size_t index) {
 /*                               STACK FUNCTIONS                              */
 /* -------------------------------------------------------------------------- */
 
+# if CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
+/**
+ * @brief Set the preferred default phy to use for connections.
+ * @param [in] txPhyMask TX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @param [in] rxPhyMask RX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @return True if successful.
+ */
+bool NimBLEDevice::setDefaultPhy(uint8_t txPhyMask, uint8_t rxPhyMask) {
+    int rc = ble_gap_set_prefered_default_le_phy(txPhyMask, rxPhyMask);
+    if (rc != 0) {
+        NIMBLE_LOGE(LOG_TAG, "Failed to set default phy; rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
+    }
+
+    return rc == 0;
+}
+# endif
+
 /**
  * @brief Host reset, we pass the message so we don't make calls until re-synced.
  * @param [in] reason The reason code for the reset.
diff --git a/src/NimBLEDevice.h b/src/NimBLEDevice.h
index 51d16c5c..96b2c678 100644
--- a/src/NimBLEDevice.h
+++ b/src/NimBLEDevice.h
@@ -136,6 +136,10 @@ class NimBLEDevice {
     static void          onSync(void);
     static void          host_task(void* param);
 
+# if CONFIG_BT_NIMBLE_EXT_ADV
+    static bool setDefaultPhy(uint8_t txPhyMask, uint8_t rxPhyMask);
+# endif
+
 # if defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
     static NimBLEScan* getScan();
 # endif
diff --git a/src/NimBLEServer.cpp b/src/NimBLEServer.cpp
index 9e9aab7a..57f74f3b 100644
--- a/src/NimBLEServer.cpp
+++ b/src/NimBLEServer.cpp
@@ -937,6 +937,50 @@ bool NimBLEServer::startAdvertising(uint8_t inst_id,
 bool NimBLEServer::stopAdvertising(uint8_t inst_id) {
     return getAdvertising()->stop(inst_id);
 } // stopAdvertising
+
+/**
+ * @brief Request an update to the PHY used for a peer connection.
+ * @param [in] connHandle the connection handle to the update the PHY for.
+ * @param [in] txPhyMask TX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @param [in] rxPhyMask RX PHY. Can be mask of following:
+ * - BLE_GAP_LE_PHY_1M_MASK
+ * - BLE_GAP_LE_PHY_2M_MASK
+ * - BLE_GAP_LE_PHY_CODED_MASK
+ * - BLE_GAP_LE_PHY_ANY_MASK
+ * @param phyOptions Additional PHY options. Valid values are:
+ * - BLE_GAP_LE_PHY_CODED_ANY (default)
+ * - BLE_GAP_LE_PHY_CODED_S2
+ * - BLE_GAP_LE_PHY_CODED_S8
+ * @return True if successful.
+ */
+bool NimBLEServer::updatePhy(uint16_t connHandle, uint8_t txPhysMask, uint8_t rxPhysMask, uint16_t phyOptions) {
+    int rc = ble_gap_set_prefered_le_phy(connHandle, txPhysMask, rxPhysMask, phyOptions);
+    if (rc != 0) {
+        NIMBLE_LOGE(LOG_TAG, "Failed to update phy; rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
+    }
+
+    return rc == 0;
+} // updatePhy
+
+/**
+ * @brief Get the PHY used for a peer connection.
+ * @param [in] connHandle the connection handle to the get the PHY for.
+ * @param [out] txPhy The TX PHY.
+ * @param [out] rxPhy The RX PHY.
+ * @return True if successful.
+ */
+bool NimBLEServer::getPhy(uint16_t connHandle, uint8_t* txPhy, uint8_t* rxPhy) {
+    int rc = ble_gap_read_le_phy(connHandle, txPhy, rxPhy);
+    if (rc != 0) {
+        NIMBLE_LOGE(LOG_TAG, "Failed to read phy; rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
+    }
+
+    return rc == 0;
+} // getPhy
 #endif
 
 #if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
diff --git a/src/NimBLEServer.h b/src/NimBLEServer.h
index 86700e19..e04d3d13 100644
--- a/src/NimBLEServer.h
+++ b/src/NimBLEServer.h
@@ -55,6 +55,8 @@ class NimBLEServer {
                                             int duration = 0,
                                             int max_events = 0);
     bool                   stopAdvertising(uint8_t inst_id);
+    bool                   updatePhy(uint16_t connHandle, uint8_t txPhysMask, uint8_t rxPhysMask, uint16_t phyOptions);
+    bool                   getPhy(uint16_t connHandle, uint8_t* txPhy, uint8_t* rxPhy);
 #endif
 #  if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
     NimBLEAdvertising*     getAdvertising();